The frenzied evacuation from Afghanistan continues. The U.S. has evacuated thousands of people from Afghanistan but has a long way to go, President Joe Biden said on Sunday. With thousands of Americans remaining in Afghanistan, Biden said his administration is in talks about extending its Aug. 31 deadline to exit. It's been a week since the Taliban entered Afghanistan's capital city and Afghan President Ashraf Ghani fled the country. The U.S. is continuing to evacuate Americans and Afghan people with special immigrant visas, with 17,000 people sent out of Afghanistan in the last week. The scene at Hamid Karzai International Airport remains frenzied as crowds attempt to leave the country. A NATO official told Reuters on Sunday that 20 people have died in the last week at the airport amid the evacuation. 18 airplanes were activated Sunday to assist in evacuation efforts out of Kabul. The planes will not fly into Hamid Karzai International Airport. Instead, they will be used for "the onward movement of passengers from temporary safe havens and interim staging bases," said Pentagon press secretary John Kirby. It is only the third time that civilian aircraft have been activated. 📸: 1st Lt. Mark Andries, Sgt. Samuel Ruiz, @marines via @apnews #afghanistan🇦🇫 #kabul #hamidkarzai