Wichita ? A predawn building fire Wednesday just east of downtown Wichita destroyed at least one business, a fire official said.

No injuries were immediately reported.

The multialarm fire was reported shortly before 3 a.m. Wednesday by a passer-by who spotted flames coming from the roof of the two-story brick building, said Fire Marshal Ed Bricknell.

At least one business in the structure, a floral shop identified as Twigs, was destroyed, Bricknell said.

The cause of the blaze is being investigated. More than 40 firefighters were dispatched to the scene on East Douglas Avenue.