A press freedom group is demanding that Mexico investigate the disappearance of a crime reporter in the Gulf coast state of Veracruz, where 12 journalists have been slain or gone missing since 2010.

The New York-based Committee to Protect Journalists on Monday urged Mexican authorities to find Sergio Landa Rosado and bring the kidnappers to justice.

A colleague tells The Associated Press that Landa went missing Jan. 23, his first day back at work at Diario Cardel in the town of Cardel after being away for more than a month because of an earlier kidnapping. The colleague insisted on speaking anonymously for fear of reprisal.

That reporter says gunmen kidnapped Landa in November, a day after he reported on the killing of a taxi driver. He was released hours later.