Fire, Police Investigate Loud Explosions, Smoke with Fire Alarm at Hancock Square at Arlington Station at Arlington Heights Rd and Miner St, Arlington Heights

Smoke, explosive noise investigation with activated fire alarm at Hancock Square at Arlington Station apartment building in Arlington Heights.

Police and firefighter/paramedics from Arlington Heights responded about 9:28 p.m. Tuesday June 2, 2020 to a report of an Activated Alarm, followed by smoke in a hallway at Hancock Square at Arlington Station Apartments, 200 North Arlington Heights Road in Arlington Heights.

Engine 2’s crew, the first fire crew arriving among fire units, reported nothing showing except fire alarm strobes and residents evacuating the building. Immediately after the fire alarm activation, at least one person called 9-1-1 reporting smoke in a hallway. Two loud explosions were also also reported by people inside the building and people on the street outside the apartment building. The explosion were perceived as louder than an M-80 type device. The second explosion was slightly louder than the first.

One person reported the sound was believed to have come from North School Park about a block north of the apartment building.




Firefighters checked all hallways for smoke, and were able to reset the alarm with the alarm holding the reset position. No smoke was detected by firefighters.

Police investigated North School Park and patrolled the neighborhoods surrounding the apartment building, but did not initially find any suspicious people in the neighborhoods.

Around the time of the incident, the official weather observation at the National Weather Service reported wind was southwest at 14 MPH to 15 MPH. There was no confirmation that smoke from the fireworks device caused the Activated Fire Alarm, and smoke from a fireworks device at North School Park would not likely activate the fire alarm, especially with the wind from the southwest. It’s possible someone could have tossed the fireworks device off a balcony, but smoke outside would not likely activate a detector. Some unknown scenario connected to a fireworks device may have set off the smoke detector.

Several people sent tips in to CARDINAL NEWS with concern because they heard two loud explosions followed by sirens — combined with the heightened alert level because of recent riots in Chicago.

The information in this article is an early report published before any summary information was confirmed or released by police or fire authorities.

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