TIKRIT, Iraq, Sept. 21 (Xinhuanet) -- US troops detained an Iraqi police chief and dozens of policemen on Wednesday after insurgents attacked a US supply convoy on Tuesday, police said.

    "US soldiers detained Brigadier Muhammed Khalaf al-Jubouri,police chief of Dhuluiyah town, north of Baghdad, and about 60 policemen for failing to deal with insurgents," a police source in Tikrit told Xinhua on condition of anonymity.

    The source said US troops have sealed off the town, some 100 kmnorth of Baghdad, and detained some 400 people, including policemen, since insurgents attacked a convoy of trucks carrying military supplies for US troops on Tuesday.

    Tuesday's attack damaged three trucks in the convoy guarded by US troops and killed three drivers, probably Turkish nationals,the source said. Enditem