Investigators say at least 18 dumpster fires are believed to have been intentionally set early Wednesday morning. Firefighters started getting calls about the fires about 12:35 a.m. Wednesday. Bellevue fire said fires were being lit until about 1 a.m. All of the fires were set in dumpsters behind businesses in Bellevue and Redmond. Many were set near 148th Avenue Northeast. About 12 dumpsters had been set on fire in Bellevue and 10-12 dumpsters were burned in Redmond. Some buildings may have smoke damage. Vehicles may have been damaged as well. A thrift store was exposed to flames but the fire was put out before it was significantly damaged. A witness told police that a suspect was likely still in the area when officers responded to the 14700 block of NE 20th Street in Bellevue.