No one was injured and no chemicals were spilled after a tanker carrying a volatile chemical flipped in north Silsbee Monday.

An evacuation was ordered for a 1,000 foot radius around the truck after it rolled just after 8 a.m. Monday about a quarter mile west of Highway 92 forcing Silsbee Police to shut down FM 418 and 11th Street.

About 20 - 25 homes and three businesses, including a laundromat and two doctor's offices were evacuated and the roadway was closed for almost five hours.

The road was reopened by 1 p.m.

The tanker truck was carrying isopentane which is flammable and could be poisonous if exposed to the air according to Silsbee Fire Chief Robin Jones.

Isopentane is extremely flammable and if mixed with air the vapors can be explosive according to the CDC website.