Mexico City: Several people were killed in  a gun battle between soldiers and gunmen in the northern Mexico border city of Matamoros.

Federal security spokesman Alejandro Poire says investigators are still working to identify the dead.

On Friday Poire said  in his Twitter account that the shootout took place n Matamoros, across the border from Brownsville, Texas.

But Poire did not specify the number of dead. Mexico's federal police and attorney general's office said they had no information, and Poire wrote that the Defense Department would provide further details later.
On the same day, the government of the Gulf coast state of Veracruz said five suspects were killed in a shootout with state police and soldiers.