By ZIARMAL HASHIMI, JILL LAWLESS and JON GAMBRELL

KABUL, Afghanistan (AP) — Western nations warned Thursday of a possible attack on Kabul’s airport, where thousands have flocked as they try to flee Taliban-controlled Afghanistan in the waning days of a massive airlift. Britain said an attack could come within hours.

Several countries urged people to avoid the airport, where an official said there was a threat of a suicide bombing. But just days — or even hours for some nations — before the evacuation effort ends, few appeared to heed the call.

Over the last week, the airport has been the scene of some of the most searing images of the chaotic end of America’s longest war and the Taliban’s takeover, as flight after flight landed to pull out those who fear a return to the militants’ brutal rule.

Already, some countries have ended their evacuations and begun to withdraw their soldiers and diplomats, signaling the beginning of the end of one of history’s largest airlifts. The Taliban have so far honored a pledge not to attack Western forces during the evacuation, but insist the foreign troops must be out by America’s self-imposed deadline of Aug. 31.

But overnight, new warnings emerged from Western capitals about a threat from Afghanistan’s Islamic State group affiliate, which likely has seen its ranks boosted by the Taliban’s freeing of prisoners during their blitz across the country.

British Armed Forces Minister James Heappey told the BBC on Thursday there was ”very, very credible reporting of an imminent attack” at the airport, possibly within “hours.”

Heappey conceded that people are desperate to leave and “there is an appetite by many in the queue to take their chances, but the reporting of this threat is very credible indeed and there is a real imminence to it.”

“There is every chance that as further reporting comes in, we may be able to change the advice again and process people anew, but there’s no guarantee of that,” he added.

Late Wednesday, the U.S. Embassy warned citizens at three airport gates to leave immediately due to an unspecified security threat. Australia, Britain and New Zealand also advised their citizens Thursday not to go to the airport, with Australia’s foreign minister saying there was a “very high threat of a terrorist attack.”

Taliban spokesman Zabihullah Mujahid denied that any attack was imminent. “It’s not correct,” he wrote in a text message after being asked about the warnings. He did not elaborate.

On Thursday, the Taliban sprayed a water cannon at those gathered at one airport gate to try to drive the crowd away, as someone launched tear gas canisters elsewhere. While some fled, others just sat on the ground, covered their face and waited in the noxious fumes.

Nadia Sadat, a 27-year-old Afghan woman, carried her 2-year-old daughter with her outside the airport. She and her husband, who had worked with coalition forces, missed a call from a number they believed was the State Department and were trying to get into the airport without any luck. Her husband had pressed ahead in the crowd to try to get them inside.

“We have to find a way to evacuate because our lives are in danger,” Sadat said. “My husband received several threatening messages from unknown sources. We have no chance except escaping.”

Gunshots later echoed in the area as Sadat waited. “There is anarchy because of immense crowds, she said, blaming the U.S. for the chaos.

Aman Karimi, 50, escorted his daughter and her family to the airport, fearful the Taliban would target her because of her husband’s work with NATO.

“The Taliban have already begun seeking those who have worked with NATO,” he said. “They are looking for them house-by-house at night.”

Many Afghans have felt the same in the wake of the Taliban’s takeover. The hard-line Islamic group wrested back control of the country nearly 20 years after being ousted in a U.S.-led invasion following the 9/11 attacks, which al-Qaida orchestrated while being sheltered by the group.

Amid concerns about attacks, military cargo planes leaving Kabul airport already use flares to disrupt any potential missile fire. But there are also worries someone could detonate explosives in the teeming crowds outside the airport.

“We received information at the military level from the United States, but also from other countries, that there were indications that there was a threat of suicide attacks on the mass of people,” Belgian Prime Minister Alexander De Croo said, talking about the threat around Kabul airport.

Senior U.S. officials said Wednesday’s warning from the embassy was related to specific threats involving the Islamic State group and potential vehicle bombs. The officials spoke on condition of anonymity because they were not authorized to discuss ongoing military operations.

The Islamic State affiliate in Afghanistan grew out of disaffected Taliban members who hold an even-more extreme view of Islam. Naming themselves after Khorasan, a historic name for the greater region, the extremists embarked on a series of brutal attacks in Afghanistan that included a 2020 assault on a maternity hospital in Kabul that saw infants and women killed.

The Taliban have fought against Islamic State militants in Afghanistan. However, their advance across the country likely saw IS fighters freed alongside the Taliban’s own. There are particular concerns that extremists may have seized heavy weapons and equipment abandoned by Afghan troops who fled the Taliban advance.

Amid the warnings and the pending American withdrawal, Canada ended its evacuations as European nations did or prepared to do the same.

Lt. Col. Georges Eiden, Luxembourg’s army representative in neighboring Pakistan, said that Friday would mark the official end for U.S. allies, though some have stopped earlier.

“The Americans want to take advantage of the last four days they have left and were given by the Taliban to bring out a maximum of Americans,” he said.

French Prime Minister Jean Castex also told RTL radio said his country’s efforts would stop Friday evening.

Danish Defense Minister Trine Bramsen bluntly warned: “It is no longer safe to fly in or out of Kabul.”

Denmark’s last flight has already departed, and Poland and Belgium have also announced the end of their evacuations. The Dutch government said it had been told by the U.S. to leave Thursday.

The Taliban have said they’ll allow Afghans to leave via commercial flights after the deadline next week, but it remains unclear which airlines would return to an airport controlled by the militants. Turkish presidential spokesman Ibrahim Kalin said talks were underway between his country and the Taliban about allowing Turkish civilian experts to help run the facility.

The Taliban have promised to return Afghanistan to security and pledged they won’t seek revenge on those who opposed them or roll back progress on human rights. But many Afghans are skeptical.

Fueling fears of what Taliban rule might hold, a journalist from private broadcaster Tolo News described being beaten by Taliban. Ziar Yad said the fighters also beat his colleague and confiscated their cameras, technical equipment and a mobile phone as they tried to report on poverty in Kabul.

“The issue has been shared with Taliban leaders; however, the perpetrators have not yet been arrested, which is a serious threat to freedom of expression,” Yad wrote on Twitter.

___

Lawless reported from London and Gambrell from Dubai, United Arab Emirates. Associated Press writers Sylvie Corbet in Paris; Jan M. Olsen from Copenhagen, Denmark; Tameem Akhgar and Andrew Wilks in Istanbul; James LaPorta in Boca Raton, Florida; Mike Corder at The Hague, Netherlands; Philip Crowther in Islamabad and Colleen Barry in Milan contributed to this report.