BAGHDAD, Aug 29 (Reuters) - U.S. forces freed a group of Iranians on Wednesday after holding them overnight in Baghdad, Iraq's Iraqiya state television reported, but a U.S. military spokesman was not immediately able to confirm the report.

Iran's IRNA news agency had reported that U.S. forces detained the delegation, which was in Iraq to sign an electricity contract, on Tuesday.

U.S. military spokesman Major Steven Lamb said he was checking the report that the delegation had been freed but was not able to confirm it.

U.S. forces have separately been holding five Iranians since January that they say were providing support to militants.

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