A house exploded in Arlington, Virginia, as police were attempting to execute a search warrant, authorities said Monday.

Police were sent to the home around 4:45 p.m. after receiving a report about someone firing a flare gun 30 to 40 times from inside the house into the neighborhood, the Arlington County Police Department said in a statement. Police tried to contact the suspect by phone and with loudspeakers, but he didn’t respond and stayed barricaded inside the home, police said.

After getting a search warrant, police officers approached the home shortly before 8:25 p.m. The suspect then “discharged several rounds” from inside the home, Arlington County police spokesperson Ashley Savage said, after which the blast occurred.

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