Friday: 11:35 a.m., 406 17th Avenue SW, carbon monoxide incident.

Saturday: 2:35 p.m., 2501 Burdick Expressway W., alarm system activation, no fire.

Sunday: 2:07 a.m., 108 Main Street S., gas leak.

Sunday: 8:20 a.m., 5 36th Avenue NE, excessive heat scorch burns, no fire.