TOPEKA, Kan. (AP) — Fire crews have been battling a blaze this (FRI) morning in downtown Topeka. Fire Marshal Michael Martin says at least four businesses have been damaged in the fire, which began about 2am. When firefighters arrived, they saw smoke and heavy fire coming from the roof HHB BBQ. Other surrounding businesses have suffered damage, including Clayton Financial Services, Jersey Mike's Subs, Hazel Hill and the Classic Bean. No injuries have been reported. Two blocks of South Kansas Avenue are expected to remain closed for several hours.