A resident of Tunisia's island of Djerba said he had heard an exchange of shots on Tuesday near a synagogue where a Jewish pilgrimage is taking place.
Tunisia's Mosaique FM radio station also reported an exchange of gunshots on the island and that a police officer had been found shot but did not say if it was close to the pilgrimage site.
There has been no official confirmation of the shooting. A video circulating on social media that Reuters has not been immediately able to verify showed people standing in a courtyard and the sound of a gunshot.