An attack by suspected Islamist militants who took 170 people hostage at Radisson Blue Hotel in the Malian capital is over, US officials say.
The National Security Council condemned the "heinous attack" in Bamako.
Mali said the gunmen had "no more hostages" and were being chased. More than 20 people died, and a national state of emergency has been declared.
Al-Qaeda in the Islamic Maghreb and its offshoot al-Murabitoun said they carried out the attack.
Speaking after a crisis cabinet meeting late on Friday, Malian President Ibrahim Boubacar Keita announced the state of emergency from midnight on Friday for 10 days, as well as three days of national mourning.
He said 21 people were killed in the attack, including two gunmen.
Earlier reports said at least 27 people had died. A UN official, who spoke on condition of anonymity, said 12 bodies were found in the basement and 15 on the second floor