Coaldale Mayor Richard Corkery faces 28 counts of child pornography charges stemming from downloading pictures of naked boys on a computer he used at work.
Corkery, elected to a second term as mayor in 2009, is expected to turn himself into police at 3:30 today at the office of District Judge Casimir Kosciolek, Lansford.
"It was a long investigation and we worked really hard on it," said Nesquehoning Police Chief Sean Smith.
Borough council president Susan Solt said she was "dumbstruck" by the news.
"I'm very upset," she said. "I'm in shock."