MV Guanabara is an oil tanker which was attacked by four pirates on 5 March 2011.

The tanker was attacked by four armed Somali pirates at 3pm on 5 March 2011.

The crew of 24 hid in a safe room, and summoned help from USS Bulkeley and the Turkish TCG Giresun.

The pirates were captured without a fight.

The fourth was turned over to juvenile authorities, as it was determined that he was a minor.