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Calgary EMS have confirmed five adult males were found dead Saturday morning after a house fire in the Falconridge neighbourhood of Calgary.

Emergency crews responded to the fire in the 100 block of Falchurch Crescent N.E. just after 1 a.m. MT Saturday.

WATCH: Local Calgary fire chief gives details of the house fire which killed five people. 1:21 Five dead after house fire in Calgary: Local fire chief Five dead after house fire in Calgary: Local fire chief

EMS cannot confirm ages of the victims at this point.

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#YourEMS #yyc update to Falchurch Cr NE house fire: Paramedics confirm 5 adults deceased at scene, all believed male. Further info pending. — AHS EMS (@ahs_ems) May 7, 2016

WATCH BELOW: Fatal Calgary house fire caught on camera

0:56 Fatal Calgary house fire caught on camera Fatal Calgary house fire caught on camera

Neighbour Tim Moerike said he first saw the flames around 12:30 a.m. MT.

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“I got up, looked out my bedroom window saw house 104 with flames about four feet high in the living room,” Moerike told Global News.

“I yelled at my wife to go phone 911, I got dressed, ran across and got my neighbours out of …108.

“By the time I got dressed to get them up, the flames were already coming out of the living room window.”

WATCH: An early morning house fire on Falchurch Crescent in Calgary left five adult males dead, according to EMS.

0:40 5 dead in house fire in Calgary 5 dead in house fire in Calgary

Chief Steve Dongworth with the Calgary Fire Department said the call was very distressing to crews, “I can’t recall the last time we had this many casualties in a fire.”

Dongworth also said there is a swingset in the front yard of the home and that initially firefighters were concerned there were children inside.

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“It’s bad enough that five people have lost their lives, but when children are suspected to be involved that’s very concerning,” said the chief.

At this point all victims are believed to be adults. Officials could not confirm whether there were working smoke detectors in the home, and the cause of the fire is still under investigation.