Taliban prevents planes of evacuees from leaving Afghanistan, but it's unclear why

At least four planes chartered to evacuate several hundred people seeking to escape the Taliban's takeover of Afghanistan have been unable to leave the country for days, officials said Sunday, with conflicting accounts emerging about why the flights weren't able to take off.

source https://www.cbc.ca/news/world/taliban-afghanistan-planes-evacuees-1.6165750?cmp=rss