GARY (AP) — A 65-year-old man wanted in Indiana for polluting wetlands and sentencing in a separate federal firearms case has been arrested in Mexico, according to the Environmental Protection Agency.

Robert Wainwright of Chesterton was arrested by U.S. Marshals and Bureau of Alcohol, Tobacco, Firearms and Explosives agents working with Mexican police. The EPA said two tips led to his arrest Tuesday. He will eventually be returned to Indiana.

"The capture of Wainwright was a team effort," Randy Ashe, special agent in charge of the EPA's Criminal Investigation Division in Chicago, told The Times of Munster. "The tip came in from Mexico to our EPA fugitive Web site."

Officials said Wainwright managed Sterling Material Services, a company that separated metal from slag and brick waste from steel mills in Lake County. They said he disposed of waste in an adjacent wetland without a permit.

A message left for Steve Bom, Wainwright's attorney in the environmental case, wasn't immediately returned Saturday. Bom has called the case against Wainwright "ridiculous and flaky." Wainwright's attorney in the gun case, Kevin E. Milner, also didn't immediately return a message seeking comment Saturday.

Wainwright and two others were charged in 2007 with seven counts of violating environmental management laws in the case. He was put on the EPA's Web site as a wanted fugitive after failing to appear at a January hearing.

During an EPA search of the business in 2007, authorities said they also discovered that the convicted felon possessed 23 guns. He was charged and convicted in June 2008 in that case, but fled to Mexico before being sentenced.