EMPORIA, Kan. (AP) _ An explosion and fire destroyed a building with five apartments on Sunday, and seven people were injured.

It took firefighters two hours to contain the blaze, which destroyed all five apartments. The cause remained under investigation.

Two residents were unaccounted for by midday, but authorities had not determined if they were home when the explosion happened about 9 a.m., a police department dispatcher said.

The injured were hospitalized but their condition was not immediately available.