A suspected Jalisco Nueva Generacion drug cartel operations chief and hitman was captured by marines in Mexico, the Navy Secretariat said Monday.

Juan Carlos Hernandez Pulido, who may have been involved in the killings of three journalists in May, was arrested on Friday after authorities received a tip that an armed individual was selling drugs from a vehicle.

The suspect tried to flee when he spotted the marines, but military personnel cut him off, the secretariat said.