A Saudi Arabian fire-fighting tug has suffered some sort of attack in the southern Red Sea off Yemen, according to security consultancy Dryad Global.

The unspecified incident involved the 375-dwt Rabigh 3 (built 1987), 15 nautical miles west of Kamaran Island on Sunday, it is suspected.

The vessel was reporting restricted manoeuvrability on 6 November, its last AIS update.