A massive search effort after a dozen inmates escaped from the Walker County Jail Sunday night has led to recapture of all but one of them.

Jailers discovered the 12 inmates missing about 6:30 p.m. Sunday. Authorities have not yet said how they broke out.

The Jasper Police Department posted this message on its Facebook page: "JPD has activated additional personnel to assist the Walker County Sheriff's Office in locating multiple escaped inmates from the Walker County Jail. We ask that downtown residents stay indoors and turn on all outdoor lighting."

Walker County Chief Deputy Dayron Bridges said sheriff's official activated off-duty employees to help in the search. Jasper and Parrish police, constables also joined in the hunt. ALEA's Aviation Unit also assisted.

As of 5 a.m. Monday, only one - Brady Andrew Kilpatrick - remained at large. The Cordova man was jailed for possession of a controlled substance,possession of drug paraphernalia, and possession of marijuana.

Those who escaped and were quickly recaptured are:

-John Richard Hunter, 26, of Jasper - in jail for burglary, theft, possession of burglary tools and escape.

-Christopher Cole Spain, 18, of Jasper - in jail for failure to appear on disorderly conduct.

-Kristopher Keith Secrest, 20, of Oakman - in jail for felony domestic violence and giving false information to law enforcement.

-Quadrekas Latoddrick Key, 21, of Parrish - in jail for possession of a controlled substance, possession drug parpahernalia and attempting to elude.

-Timothy Chaz Cooper, 28, of Cordova - in jail for breaking and entering a motor vehicle and fourth-degree theft.

-Steven Sanford Hartley, 27, of Hoover - in jail for first-degree theft of property.

Those who escaped and were taken back into custody late Sunday and early Monday are:

-Michael Adam McGuff, 30, of Jasper - in jail for third-degree escape and obstructing government operations. He was back in custody by 10:30 p.m.

-Steven Blake Lamb, 28, of Quinton - in jail for attempted murder, first-degree robbery, first-degree theft, reckless endangerment and probation revocations. He was recaptured at 10:42 p.m. Sunday.

- Christopher Micheal Smith, 19, of Jasper - in jail for attempted murder, first-degree burglary, unlawful breaking and entering, second-degree theft. He was captured at 4:21 a.m. Monday in Townley.

-Larry Inman Jr, 29, of Parrish, - in jail for two counts of receiving stolen property, attempting to elude, failure to appear. Inman was recaptured by sheriff's deputies and Birmingham police at the Flying J of of I-65 about 1:52 a.m. Monday.

-Ethan Howard Pearl, 24, of Jasper -in jail for resisting arrest, obstructing government operations, possession of drug paraphernalia, promoting prison contraband, and failure to appear. Pearl was also captured by Walker County and Birmingham lawmen at the Flying J. He was taken into custody at 2:06 a.m.

A $500 reward was offered for information that led to the arrest of the escapees. Contact the Sheriff's Office at (205) 302-6464.

This story will be updated