HOUSTON (AP) - Schools and businesses in Houston remain closed and a boil order is in effect for parts of the city after a water pipe ruptured and flooded a freeway. The water main burst open Thursday at a plant that supplies water to about half of the city. Flash flooding from the water main break submerged vehicles on a highway that circles the city. No one was injured and the highway reopened early Friday. Officials say the break happened while a contractor was trying to repair a leak.

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