Royal Navy nuclear sub is damaged in collision
A nuclear-powered Royal Navy submarine has been forced into port in Gibraltar after a collision with a merchant vessel.
An immediate investigation has been launched after HMS Ambush was involved in the "glancing" collision while submerged off the coast of Gibraltar, the Royal Navy said.
The Astute-class vessel suffered "some external damage" but no crew members were injured in the incident, which the Ministry of Defence (MoD) said occurred while it was at periscope depth.
The attack submarine's nuclear reactor was undamaged, the Royal Navy added.
Photographs show the vessel's conning tower, the raised platform from which officers give orders, badly damaged, with a large dent in its front.
The MoD said the damage was "consistent" with a glancing collision.