Firefighters found two propane tanks and a pipe bomb near a suburban Denver mall's food court after a fire broke out Wednesday, and investigators were exploring a possible connection between the incident and the 12th anniversary of the Columbine massacre.

LITTLETON, Colo. — Firefighters found two propane tanks and a pipe bomb near a suburban Denver mall's food court after a fire broke out Wednesday, and investigators were exploring a possible connection between the incident and the 12th anniversary of the Columbine massacre.

The Southwest Plaza Mall was evacuated after the fire, which started around noon. No one was injured and the bombs didn't explode.

One official called the location and timing of the incident "disturbing." The mall is about two miles from Columbine High School, where two student gunmen killed 13 people and themselves on April 20, 1999. Unexploded pipe bombs and a propane tank with explosives attached were found in the school after the shootings.

"The fact that has happened on April 20, 12 years later, near the school and with similar devices is very disturbing," Jefferson County sheriff's spokeswoman Jacki Kelley said.

The anniversary of Columbine was on the minds of people in the area.

"If it's kids, they're crazy not to know what this means in this town," Margie Hecht, who lives near the mall, told The Denver Post. "I remember that day and they wouldn't think this is funny if they did."

FBI spokesman Dave Joly said authorities have identified a possible person of interest, but no details were immediately available Wednesday night. It's too early to speculate whether the incident was an act of terrorism, he said.