LOS ANGELES (CBSLA) — Multiple buildings caught fire near the Little Tokyo area after an explosion in downtown Los Angeles on Saturday evening, injuring at least 10 firefighters, the Los Angeles Fire Department said.

The explosion — ringing out just a few blocks from Skid Row — was heard as firefighters responded to a fire at a one-story commercial building at 327 E Boyd St., according to LAFD.

The incident was first reported around 6:26 p.m.

Firefighters were transported to a nearby hospital with burn injuries. Two were critical, one was in serious condition and the remaining had moderate injuries, officials said.

L.A. Mayor Eric Garcetti said he is monitoring the situation, tweeting shortly after an update from LAFD, “My thoughts are with our brave @LAFD firefighters. Closely tracking this situation as we continue to get more information.” Read more at CBS LA