Celebrity | Amy Winehouse Winehouse 'Cautioned' After Night in Cell Singer held by London police on suspicion of assault By Rob Quinn Posted Apr 26, 2008 8:01 AM CDT Copied British singer Amy Winehouse arrives at a police station in London, Friday April 25, 2008, where she voluntarily appeared to be questioned in connection with an alleged assault. (AP Photo/Anthony Devlin, PA) Amy Winehouse spent the night behind bars after showing up 3 hours late for questioning yesterday on Tuesday's head-butting and punching assault on two men outside a London bar, the Times reports. The visibly distressed singer was arrested and held overnight because a doctor deemed her “unfit to be interviewed.” This morning she was questioned and released with a "caution." "Amy was fully co-operative with inquiries and apologized for the incident," her spokesman said. "She thanked the police for their professional handling of the matter. There will be no further action taken." Read These Next The gunman who killed 4 at a Michigan church was an ex-marine. 'We heard a big bang,' says churchgoer in Michigan Skydivers leap from plane 2 minutes before fatal crash. Multiple people have been shot at a Mormon church in Michigan. Report an error