Gun battles between police and attackers in a remote northern Mozambican port killed 16 people, including two police officers, local media reported.
The attacks in Mocimboa da Praia, near the border with Tanzania and offshore gas fields, took place last Thursday and police have since regained control of the town, the official AIM news agency said.
The motive for the attacks was not clear and government has not blamed opposition Renamo, against which it fought a civil war for almost two decades that ended in 1992. Fighting has periodically erupted with a ceasefire in place since earlier this year.
“We need to know who they are, what their motives are, and where they came from,” Celmira da Silva, governor of the province Cabo Delgado, told Radio Mozambique.
Local media reported the attack was carried out by Islamists but government has not confirmed this. Mozambique has not been a focal point of Islamist militant activity.
Mozambique police were expected to hold a press briefing in Maputo about the attacks.