Iraqi security forces At least 13 people are killed as Iraqi security forces end the siege at the local government compound on Monday, police have said. Earlier gunmen stormed a police headquarters in a western Iraqi town , taking hostage up to 15 senior officials and policemen, officials say. A police source said the attackers had taken hostage the police chief and the mayor of the town, located in Anbar province, about 150km northwest of Baghdad. At least two explosions preceded the assault. One official said the blasts were caused by roadside bombs while another said they were suicide attacks. Provincial police sources said the attackers broke into the police station wearing police uniforms to disguise themselves and immediately opened fire upon entering.