Islamic State has claimed responsibility for a suicide bomb blast in the Tunisian capital earlier this week, the militant group's Amaq news agency said on Thursday.
A wanted militant wearing an explosives belt blew himself up in Tunis on Tuesday after being surrounded by police, the government said, but there were no other casualties.
It was the third such incident within a week and came a few months ahead of an election and at the peak of a tourist season in which Tunisia is hoping for a record number of visitors.
Two suicide bombers blew themselves up in separate attacks on police in Tunis on June 27, killing one police officer and wounding several people. Islamic State militants claimed responsibility for both attacks.