LOS FELIZ, LOS ANGELES (KABC) -- A man attempting to flag Los Angeles police officers down with his arm wrapped in a towel was shot in the head Friday in Los Feliz.The man was shot at about 6:35 p.m. on Los Feliz Boulevard and Tica Drive. He was allegedly raising his arm wrapped in a towel, possibly holding a gun."The officer exited the vehicle and quickly said, 'Drop the gun, drop the gun,'" LAPD Lt. John Jenal said.Moments later, the officer opened fire.It was unclear if the man had a gun, but the officers believed the man had a gun, Jenal said.The man was taken to a hospital in critical condition.As part of the investigation, Los Feliz Boulevard was expected to be shut down from Griffith Park Boulevard to Hillhurst Avenue until Saturday morning.