The Loenga–Alnabru Line (Norwegian: Loenga–Alnabrulinjen) is a 7.3 kilometer long railway line in Oslo, Norway that connects the Østfold Line to the Hoved Line, without passing through Oslo Central Station. The line is solely used for freight traffic, including serving Alnabru Freight Terminal. A train accident occurred at Sjursøya on 24 March 2010, when a runaway set of 16 empty carriages belonging to CargoNet crashed into a terminal building at high speed.