NORTH BEND, Wash. -

A massive explosion and fire has destroyed or damaged several businesses in North Bend.

Eastside Fire and Rescue spokesman Wes Collins says there have been two minor injuries. Firefighters are searching damaged buildings in North Bend, but they don't expect anyone was inside at the time.

Collins says the blast may have been caused by a natural gas leak at a pizza restaurant reportedly under renovation.

A dispatcher says there were multiple calls and automated alarms at about 3:40 a.m. Friday.

The fire has reportedly burned a barber shop and damage is visible at a gas station, tire store and grocery. Debris is scattered over a wide area.