SAN MARINO >> San Marino police jailed a San Gabriel man on suspicion of identity theft, mail theft and other crimes after catching him with a car filled with hundreds of pieces of stolen mail, checks, identification cards, credit cards, and other identity-theft related materials, police said.

Joseph Kamel, 40, was being held in lieu of $250,000 bail Saturday following his arrest on Thursday evening, according to San Marino police officials and Los Angeles County booking records.

Investigators had been seeking Kamel after he and his car were seen in connection with at least two mail or package thefts in the city dating back to May, San Marino police Sgt. Robert Matthews said.

After spotting Kamel driving through the city, an officer summoned backup and followed him into the 1500 block of Oak Knoll Avenue in Pasadena, where they pulled the car over and detained Kamel without a struggle, police said. He was alone in the black, 2011 Chevrolet Camaro.

“A subsequent investigation revealed Kamel to be in possession of a U.S. Postal service master key, hundreds of pieces of mail addressed to individual persons and businesses across Los Angeles County, over 100 checks that were addressed to other victims, banking statements, U.S. Passports, California Identification cards and Driver Licenses, credit card encoding and skimming devices, and ledgers containing personal and banking information of many other potential victims,” Sgt. Timothy Tebbetts said in a written statement.

Some of the people whose information was recovered from Kamel’s car had already been the victims of identity theft, Matthews said.

It was yet to be determined whether the case would be turned over to federal officials for prosecution, though it appeared likely, Matthews said. Mail theft is a federal crime.

Thursday’s arrest was the latest in series of arrests by area police for alleged large-scale mail and identity theft schemes.

Police in South Pasadena arrested a Highland Park woman on Sept. 3 after finding her driving through town with a treasure trove of stolen mail, documents, mail keys and other theft-related items. Marisa Rae Delgado, 27, is facing federal charges in the case.

And San Marino police in May arrested a mother and daughter for allegedly driving around with stolen mail, a U.S. Postal Service master key and methamphetamine, police said at the time. Estela Castaneda, 48, of Huntington Park and Elizabeth Castaneda, 22, of Rosemead, also face federal charges.

The two San Marino cases appear to be linked, officials said. Kamel posted bail for Elizabeth Castaneda following her arrest in May, officials said. Their relationship was unclear Saturday.

Kamel is scheduled to make his first appearance Tuesday in the Alhambra branch of Los Angeles County Superior Court, records show.