Fire drill mishap

My group of residence halls were having fire drills conducted yesterday, but before they got to my dorm there was a major problem. From what I understand and witnessed yesterday from my room, a dorm nearby was having a fire drill and it seemed pretty typical. The alarms for that dorm were shut off and they moved to the next dorm. About 30 seconds later, the fire alarm systems in both the previous dorm and the subsequent dorm went into alarm at the same time. Eventually both were reset (at the same time) and after awhile of no fire alarms going off in my dorm I figured it was just an issue with those two buildings and it wasn’t an actual fire drill.

My RA told us that they were conducting fire drills yesterday and that there was a major glitch with those two buildings so they cancelled the rest of the drills for the day and possibly the month as they figure out why one building triggered another buildings system. Being the alarm nerd I am, I’m trying to figure out what happened… any ideas? Could it have been a network issue?