-- "It was like a nuclear bomb went off," West Mayor Tommy Muska said.
-- Some 10 to 15 buildings have been "totally demolished" and "probably 50 homes (were) heavily damaged," said George Smith, community emergency medical services director.
-- The fertilizer plant was near an apartment complex and a nursing home, authorities said.
-- Some people might be trapped in collapsed buildings, Smith said.
-- "I expect there's going to be many fatalities and many more injured people," he added.
-- State troopers in gas masks set up roadblocks, waving away cars coming off the highway