Ghana's immigration service released a memo stating that Ghana and Togo will be the next targets for Islamist fighters, following high-profile attacks this year in Burkina Faso and Ivory Coast.
The militants said Sunday's raid in Grand Bassam, which killed 18 people, was meant as a warning for countries who have allied with France and its military operations in West Africa.
This is the third time in recent months that the North African-based group al Qaeda in the Islamic Maghreb has claimed responsibility for an attack on soft targets in West Africa.
A statement released on public television late on Saturday urged residents to provide information on Cheikh Ould Saleck, a militant with Al Qaeda in the Islamic Maghreb who has been on death row since 2011.
A total of 20 people were wounded after unknown attackers fired rockets at a UN peacekeeping base in Kidal in northern Mali.
The death toll, number of attackers, and group responsible remain unconfirmed, but chilling details about the rampage and the story of a heroic effort to rescue hostages have emerged.
Mali’s capital Bamako used to be considered safe, but a recent wave of attacks has led to a redoubling of counter-terrorism efforts in the country's south.
Mokhtar Belmokhtar evaded authorities for so long that the French intelligence service dubbed him 'The Uncatchable'. He's been reported dead several times before but later reappeared.
The attack lasted three hours, and the insurgents left the town after torching two army vehicles and hoisting their black flag over the camp.
Tunisian officials say the attacker, who shot dead six people before killing himself, was a soldier with "behavioral issues" who was forbidden from carrying a weapon.
Abdelkrim al-Targui, a high-ranking member of al Qaeda in the Islamic Maghreb, was held responsible for the kidnapping and killing of several French hostages.