"Outlaws" threw petrol bombs at government buildings in the restive southern city of Maan Friday, where unrest this week has killed one man and wounded five policemen, a security source said. The violence first erupted Sunday night when gunmen opened fire at police guarding a courthouse in Maan, seriously wounding one of them. Security forces opened an investigation into the incident and launched a manhunt for the gunmen, triggering riots in the city, said the security source. The following day, angry residents blocked roads while others torched three banks and a tax ******, and gunmen fired on police and other government buildings, witnesses said.