MEXICO CITY, Jan. 25 (Xinhuanet) -- Two Mexican air force helicopters clashed mid-air over a military base on Tuesday morning, killing all five soldiers aboard, the El Universal newspaper reported.

    The two Russian-made MI helicopters ran into each other at 10:40 a.m. (1640 GMT) on their way back to the Santa Lucia military base in the state of Mexico, the paper quoted police as saying.

    The Defense Ministry has not given any details of the incident.Enditem