MORELIA, Mexico (AP) — Five suspected drug cartel supporters were killed in a shootout with vigilantes fighting the Knights Templar cartel in western Mexico, authorities reported Monday, the same day the federal government announced the beginning of “demobilization” for the vigilantes’ “self-defense” movement.

Federal police said the shootings occurred Sunday on the outskirts of the seaport of Lazaro Cardenas as vigilantes tried to push farther into the city, which is considered one of the cartel’s last strongholds. The spokesman for the self-defense movement, Estanislao Beltran, said the vigilantes appeared to be a legitimate group from the nearby town of Caleta de Campos.