Firefighters believe a cigarette may have caused a fire in a small east-side apartment complex early Friday morning. It took firefighters about two hours to contain the blaze, which broke out at about 2 a.m. in the 4300 block of East Washington Street. The four-unit complex also houses Trinity House Community Outreach Church. Damage was estimated at more than $70,000. No injuries were reported. Four people from two units escaped without injury.