MS Thorbjørn (call sign LILU) is a vessel owned by AUF.

[2] Before the vessel was converted into a civilian passenger ferry, it was a military landing craft of the L-50-type.

In July 2011 MS Thorbjørn was used by Anders Behring Breivik to reach Utøya before his attack on the AUF summer camp.

A few minutes after the first shots were fired, the vessel left the island with only nine people on board.

Fearing that there might be more terrorists in the area, they took the ferry 2.7 kilometres (1.5 nmi; 1.7 mi) north to Skoglund.