Utah House Shooting Update: House where three were shot dead is linked to narcotics, police say

(CBS) SALT LAKE CITY - The Midvale, Utah home where three people were reportedly shot to death and a fourth person was critically wounded Tuesday morning, is a known narcotics house, police say, according to CBS affiliate KUTV. 

Police say they recently served a warrant there.

KUTV reports a man walked into the home and opened fire around 8 a.m. Tuesday morning. According to the station, police received a 911 call from inside the house while the shooting was taking place.

Four people were shot. Three of the victims died from their wounds and the remaining victim, a female, was taken to a hospital in critical condition, the station says.

Police are reportedly searching for two suspects. One of the persons of interest is 25-year-old David Fresques. Fresques' Nissan Maxima was located at a Motel 6 in Midvale, but Fresques has not been found, KUTV reports.

Police dogs are being utilized in the search.

The lockdown of local schools has been lifted. The station says police officials are at the schools and feel the children are safe.

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Feb. 12, 2013 - Utah House Shooting: 3 dead, 1 wounded at home in Salt Lake suburb, police say