At least 11 people were killed and 12 others injured in an armed attack at a football field in Salamanca, a city in Mexico’s central Guanajuato state, on Sunday. Local authorities confirmed the incident and said that security forces were working to bring the situation under control.

According to a statement from the mayor’s office, an operation has been launched to identify and apprehend those responsible for the attack. News agency AFP reported that details of the assault have not yet been released. Authorities stated that an investigation is ongoing and more information will be shared once available.

The incident has prompted heightened security measures in the area as officials continue efforts to restore order and determine the motive behind the attack.