As officers were getting ready to execute a search warrant at the home of a suspect who had fired a flare gun on the 800 block of N. Burlington Street, he discharged a several rounds around 8:40 p.m., Arlington County police said.
Then, an explosion occurred, police said.
A heavy police presence is expected, and firefighters were working to put out the blaze as of 9:15 p.m.
This is a developing story. Check back for details.
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