The Maine Warden Service is using dog teams and helicopters to search for a missing Medford woman.

The warden service and the Piscataquis County Sheriff’s Office are looking for Diana L. Estey, 71, of Medford Center Road.

Authorities said Estey was last seen Monday and may have been missing from her home since Wednesday.

Lt. Kevin Adam of the warden service said Estey is about 5-feet-2 and 95 pounds, with gray hair and green eyes.

Police asked anyone with information to call the Piscataquis County Sheriff’s Office at 564-3304.

Medford is in Piscataquis County, east of Dover-Foxcroft and north of Bangor.