Pentagon: Blast outside Kabul airport, no word on casualties
An explosion has gone off outside the Kabul airport.
Thousands of people have flocked there as they try to flee the Taliban takeover of Afghanistan.
Western nations had warned of a possible attack there in the waning days of a massive airlift.
The Pentagon confirmed the blast Thursday, with no immediate word on casualties.
Several countries urged people to avoid the airport earlier in the day, with one saying there was a threat of a suicide bombing. But just days before the evacuation effort ends, few appeared to heed the call.