Severe storms kill at least four people in Houston

Transmission power lines are down near the Grand Parkway and West Road after a storm in Cypress, Texas (Melissa Phillip/Houston Chronicle via AP)

Severe thunderstorms hit southeastern Texas on Thursday for the second time this month, killing at least four people.

The storms blew out windows in high-rise buildings, downed trees and knocked out power to nearly 900,000 homes and businesses in the Houston area.