Two Pueblo County lawmen are confirmed killed in a plane crash while searching the southern Colorado mountains for an illegal marijuana grow.

Pueblo County sheriff's office spokeswoman Lisa Shorter says an employee of the sheriff's office and a retired Pueblo city policeman were on board. The plane wreckage was found on Greenhorn Mountain at about 10,000 feet in the San Isabel National Forest in Custer County.

The single-engine Piper Super Cruiser left Pueblo Memorial Airport Friday morning and was due back around 10 a.m. but did not return.

Shorter said the victims were both men but gave no more identifying information. She said the retired policeman was the pilot, but Shorter was not immediately sure whether he was volunteering his time or working for the department.