At least 13 people were killed when attackers wielding guns raided two separate areas on the Kenyan coast overnight, the Kenyan Red Cross said.
Four people lost their lives at Hindi trading centre in Lamu county, near the scene of attacks in which 65 people were killed last month, the Red Cross said on Twitter.
Nine more people were killed in another attack in the Gamba area of Tana River county.
More top news
Stephen Hawking said a Brexit would make Britain more "isolated and insular".
Michael Gove and Boris Johnson are increasingly behaving like an opposition party at a general election.
At least 17 people trapped inside an ammunition depot in India when a fire broke out are feared to have died.