Infant female evaluated during ambulance call at (number withheld) Calvin St Heard on: Middlesex MA Law Dispatch Group Calls 00:24 00:00 Air fire alarm, request the ambulance. Transcript This transcript is auto-generated from live dispatch audio and may be incomplete or inaccurate. It is not an official report and may change. 00:00 Air fire alarm, request the ambulance. 00:02 Meet the police, (number withheld) Calvin Street. 00:05 It's going to be for an evaluation on an infant. 00:10 PD will advise on scene. 00:13 Again, that's air fire alarm, request the ambulance to (number withheld) Calvin Street. 00:18 Meet the police for an evaluation on an infant female. 00:22 PD will advise more on scene. 6/29/2026 01:49 PM Medical Emergency Calvin St, Ayer, MA 01432 View on map