President Ibrahim Boubacar Keita announced the measures on national TV following a siege at the Radisson Blu hotel that saw 170 hostages seized and two attackers killed.
Nationals from Belgium, the U.S., China and Russia were among the victims, according to official statements.
Keita thanked Malian and French security forces for their role in ending the siege. U.S. forces were also involved in helping free the hostages.
Al-Mourabitoun, an al-Qaeda-linked group led by Algerian Mokhtar Belmokhtar, claimed it carried out the attack alongside al-Qaeda’s north African affiliate.
Seven Turkish Airlines staff were at the hotel when it was attacked early Friday morning.
The airline said Saturday that six had returned to Istanbul by private airplane after spending the night at the country’s Bamako embassy. The company’s station chief remained in Mali.
According to a senior Belgian official, Geoffrey Dieudonne -- an official with the Wallonia regional parliament -- was killed.
China’s official news agency Xinhua, citing a statement on the website of the China Railway Construction Corp., said three executives -- Zhou Tianxiang, Wang Xuanshang and Chang Xuehui -- were killed.
Public health worker Anita Datar, a U.S. national, also died in the attack. In a Twitter message, U.S. Secretary of State John Kerry said: “We mourn American Anita Datar… We extend condolences to family and friends and stand with the Malian people.”
Several Russians were also killed, according to foreign ministry spokeswoman Maria Zakharova.