Mexico City -Mexican authorities say marines have detained one of the leaders of the La Familia drug gang in Mexico State, near Mexico City.

Law enforcement officials who were not authorized to be quoted by name said Wednesday that Jose Maria Chavez headed the gang's activities in Mexico State.

The La Familia gang originated in the neighboring state of Michoacan, but by 2011 it was displaced by the Knights Templar cartel.

La Familia members then focused on Mexico State, where they have been implicated in killings and extortion.

Mexico State was also the scene of a confrontation Monday in which 22 suspected members of the Guerreros Unidos gang were killed and one soldier was wounded.

The arrest appeared to be unrelated to that earlier shootout.