Armed groups clash near Culiacan

Armed groups battled in two municipalities near Culiacan, Sinaloa, on Thursday morning, with reports indicating between seven to 10 people dead.
It seems that there were several clashes. The first took place between 3 and 3:30 a.m. in the municipality of Guamuchil. Media reports differ on the details but indicate that the assailants -- "part of an armed group," El Sol de Sinaloa reports -- targeted police cars (about 10 vehicles shot) and municipal buildings (including a Salvador Alvarado police station) with four people slain by bullets.
The group that launched the attack subsequently encountered a rival gang, and the two groups clashed a few times on the highways from Guamuchil to Guasave. The streets were strewn with the remains of the carnage: three dead and almost 10 vehicles abandoned (El Sol de Sinaloa has concrete details on six).
El Sol further reports that elements of the Army have already seized 46 AK-47 cartridges, four hand grenades and an amount of marijuana, and calls the gangs "rival groups working for organized crime and narcotrafficking cartels."