A grass fire that burned approximately three acres near Carp Lake in southern El Paso County will be investigated as an arson, said El Paso County Sheriff's Office spokesman Lt. Jeff Kramer.

"Based on observations from deputies and fire crews at the scene, this fire is considered to be an act of arson," Kramer said. "There is no suspect information, and fire investigators will spend several hours collecting evidence."

The blaze sparked about 1:15 p.m. on the north end of Carp Lake and prompted the closure of Fontaine Boulevard from Grinnell Street to Drury Lane, east of U.S. 85/87, Kramer said.

Security and Fountain crews, with assistance from the El Paso County Wildland Team, battled the blaze for nearly two hours. Kramer said Security firefighters were keeping a close eye on the area and putting out any hot spots.

A red flag warning for El Paso County and most of southeastern Colorado from noon until 9 p.m. Tuesday was issued by the National Weather Service.

Low relative humitidy levels, gusting winds and high temperatures were in the forecast for the rest of the week, prompting a fire weather watch through Wednesday night, the weather service said.

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