PEMBROKE — Police have made two arrests in an ongoing investigation of an attempted armed robbery.

Nicolas Lavoie, 19, was arrested Friday and charged with conspiracy to commit robbery.

He was arraigned that day in the Sixth Circuit Court in Concord and released on a $20,000 personal recognizance bond.

A related arrest was made Tuesday. Police charged 19-year-old Jacob Collinge with attempted armed robbery and other offenses.

Collinge was arraigned Tuesday in the Sixth Circuit Court in Hooksett and held on $60,000 cash bail.

Both Lavoie and Collinge are Pembroke residents.

Probable cause hearings have yet to be scheduled but will take place in the Sixth Circuit Court in Hooksett.

Following Collinge's arrest, police announced that additional arrests were pending.

Lt. Gary Gaskell said Friday that the investigation remains open, so he could not provide more information on the arrests or the incident that prompted them.

“My hope is that over the weekend we're going to be able to develop it a bit more,” he said.

klannan@newstote.com.