Singapore: The guided-missile destroyer USS John S. McCain collided with the merchant vessel Alnic MC near the east of Singapore and the Straits of Malacca on Monday morning.

The ship was on its way to a routine port visit in Singapore while the accident happened, Xinhua reported citing the US Navy as saying.

Initial reports indicated John S. McCain sustained damage to its port side aft. Search and rescue efforts are underway in coordination with local authorities.

The Singapore harbour authorities could not be reached for comments.