The fighting has left hundreds of people dead or wounded, but reliable casualty figures are not available.
The fighting left one insurgent dead and four people injured.
Fierce fighting on that day would leave 3 officers and 15 soldiers dead, together with a large number of Indians.
Already the fighting has left hundreds, if not thousands, of casualties.
The fighting between them has left thousands dead in Chihuahua state.
The fighting left more than 1,000 people dead on both sides.
The fighting left 11 dead, a spokesman for the mosque said.
On 2 June, more fighting left another 15 people dead, including a seven-year-old girl.
The fighting has left at least two million of the south's six million people homeless.
The fighting has already left hundreds, perhaps thousands, of dead and wounded.