A Palestinian convicted of bombings in Denmark and the Netherlands escaped Thursday from a maximum security prison by scaling a wall and commandeering a car with a shotgun, police said.

Authorities immediately launched a nationwide hunt for Marten Imandi, 37, who escaped from the Kumla prison in south central Sweden with Ioan Ursut, a Romanian-born man convicted of attempted murder, a police official said.Imandi was sentenced to life in prison in 1989 for the 1985 bombings of a synagogue and a Northwest Orient airline office in Copenhagen. The office bombing killed one person and injured more than 20.

Imandi and Ursut escaped by climbing a wall from a recreation area in what officials say is Sweden's most secure prison, 150 miles west of Stockholm.