(Portland, OR) -- Two suspects were arrested for separate arsons on Saturday in Portland. Early Thursday morning, a fire was set on the front porch of a home. Residents put it out with a fire extinguisher. Erick Alexander was arrested Saturday and will be charged with five counts of attempted murder and arson. Later in the evening firefighters responded to three fires that had been set in Northeast Portland. Police arrested Crystle Knocke for those fires and others that occurred in October.