Mexico City: A former deputy police chief and suspected member of the Guerreros Unidos ("United Warriors") drug cartel, that allegedly, is involved in the disappearance of 43 students in Mexico earlier this year, has been arrested, official sources said.

Cesar Nava Gonzalez, ex-deputy police chief of the town of Cocula, Guerrero went into hiding in Mexico City and later in Colima, from where he was arrested, Mexican attorney general's office said.