Inquirer staff report:

Three men have been arrested in an investigation of a $2.5 million methamphetamine ring operating in Southeastern Pennsylvania and South Jersey, Pennsylvania Attorney General Tom Corbett's office says.

Corbett has scheduled a 1:30 p.m. news conference to provide details of the arrests and investigation.

The ongoing investigation focused on the distribution of large quantities of crystal meth in Philadelphia, Bucks County, Delaware County and Southern New Jersey, his office says.

Read more breaking news in our From The Source blog.