UPDATE | No injuries after supply rocket headed to space station explodes in Va.

ATLANTIC, Va. (AP) — An unmanned commercial supply rocket bound for the International Space Station exploded moments after liftoff this evening, with debris falling in flames over the launch site in Virginia.

No injuries were reported after the first catastrophic launch in NASA's commercial spaceflight effort.

The accident at Orbital Sciences Corp.'s launch complex at Wallops Island was sure to draw criticism over the space agency's growing reliance on private U.S. companies in this post-shuttle effort.

NASA is paying billions of dollars to Orbital Sciences and the SpaceX company to make station deliveries, and it's counting on SpaceX and Boeing to start flying U.S. astronauts to the orbiting lab as early as 2017.

The Orbital Sciences' Antares rocket blew up over the launch complex. The company said everyone at the site had been accounted for, and the damage appeared to be limited to the facilities. And nothing on the lost flight was urgently needed by the six people living on the space station 260 miles into space, officials said.

Flames could be seen shooting into the sky as the sun set.

Orbital Sciences' executive vice president Frank Culbertson said things began to go wrong 10 to 12 seconds into the flight and it was all over in 20 seconds when what was left of the rocket came crashing down. He said he believes the range-safety staff sent a destruct signal before it hit the ground, but was not certain at this point.

Bill Wrobel, director of NASA's Wallops Flight Facility, said crews were letting the fire burn out and have set up a perimeter to contain them in the darkness.