One Briton and one Irishman have been arrested on suspicion of illegally boarding the Costa Concordia to search for souvenirs, Italian police sources said according to The Sunday Telegraph.
The men, who have not been named by police, were among four salvage workers who are alleged to have boarded the stricken vessel late on Thursday night.
The two other men arrested are South African nationals. All four men are employees of salvage firm Salvage Consortium Titan-Micoperi, which is working to shift the Costa Concordia from the rocks off the Italian island of Giglio.
They are believed to have been caught by CCTV monitoring an off-limits area of the ship.
The cruise ship was subject to a parbuckling operation in September, with the vessel successfully raised from its side.