Colonial Regional Police, with the assistance of the Easton Police Department, raided an Easton home Thursday in search of the man suspected of robbing the pharmacy inside the Wal-Mart in Lower Nazareth Township.

Gregory Paul Dalrymple, 29, of 18 N. 11th St., Easton, remains at large, police say.

Colonial Regional officers, working with Easton's tactical team, acted on an arrest warrant for Dalrymple Wednesday for the robbery at Wal-Mart, near the Palmer Township border. 

During Monday night's robbery, he allegedly demanded oxycodone and fentanyl patches. Dalrymple fled in a gold-colored sedan with the narcotic pain patches and moe than 1,000 oxycodone pills, police said.

On Tuesday, Colonial Regional Police received a tip that the suspect involved in the robbery was Dalrymple. The following day, Dalrymple was identified from a photo line-up, according to police.

An arrest warrant was obtained for Dalrymple on charges of robbery, simple assault, possession of instruments of crime and receiving stolen property.

Dalrymple is described as a white male and about 5'9'' with a heavy build.

Anyone with information is asked to contact Colonial Regional Police at (610) 861-4820.