San Joaquin County Sheriff's Office reported that there was an unknown attack at a mosque in Tracy, California. The attack took place at the Tracy Islamic Center on Friday night or early Saturday.
There were no details given about the incident yet, but the police have started an investigation.
Officials believe that it may have been a Molotov cocktail thrown at the mosque and labeled the incident as a hate crime.
Lt. Mike Van Grouw told the Sacramento Bee, local news website, that the deputies were unable to locate the surveillance video and do not have a description of the suspect.
Additionally according to AFP, a fire was also reported on Friday afternoon at the Islamic Society of Greater Houston.
No one was injured in the incident, but it caused a total damage of $1,000.