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Rocket to resupply space station breaks apart after launch

An unmanned SpaceX rocket carrying supplies and the first-of-its-kind docking port to the International Space Station broke apart Sunday shortly after liftoff. It was a severe blow to NASA, still reeling from previous failed shipments.

The accident occurred about 2 1/2 minutes into the flight from Cape Canaveral, Florida. Pieces could be seen falling into the Atlantic. More than 5,200 pounds of space station cargo were on board, including the first docking port designed for future commercial crew capsules.

‘‘The vehicle has broken up,’’ announced NASA commentator George Diller. He said it was not clear how the disaster occurred or even when the rocket actually failed. Data stopped flowing from the rocket around 2 minutes and 19 seconds, he said. No astronauts were on board.

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The California-based SpaceX was trying to figure out what happened, noting that everything appeared to go well in flight until the Falcon 9 rocket went supersonic.

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It was a huge setback for NASA, which is counting on private industry to transport cargo — and eventually astronauts — to the orbiting lab. The seven previous SpaceX supply runs had gone exceedingly well.

This is the second failed station shipment in a row. In April, a Russian cargo ship spun out of control and burned up upon re-entry, along with all its precious contents. And last October, another company’s supply ship was destroyed in a launch accident.

This Dragon had been carrying replacement food, clothes and science experiments for items lost in those two mishaps.

The three space station residents are in no immediate trouble because of the latest failed delivery. Late last week, NASA’s space station program manager, Mike Suffredini, said the outpost had enough supplies on board to make it to October or so.

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Russia expects to take another crack at launching supplies on Friday from Kazakhstan.

SpaceX, meanwhile, is one of two companies hired by NASA to start ferrying American astronauts to the space station as early as 2017. The other contender is Boeing.

SpaceX is led by billionaire Elon Musk, who also heads up Tesla, the electric car maker.

See a NASA video of the launch posted on Youtube:

An unmanned Space Exploration Technologies Falcon 9 rocket launches in Cape Canaveral, Florida, June 28, 2015. The rocket exploded about two minutes after liftoff from Cape Canaveral Air Force Station on Sunday, destroying a cargo ship bound for the International Space Station, NASA said. REUTERS/Michael Berrigan
Michael Berrigan/REUTERS
The rocket just after launch.

The SpaceX Falcon 9 rocket and Dragon spacecraft stands ready for launch on Space Launch Complex 40 at the Cape Canaveral Air Force Station in Cape Canaveral, Fla., early Sunday, June 28, 2015. The spacecraft is delivering a much-needed load of supplies to the International Space Station on the heels of a failed supply run by Russia. (AP Photo/John Raoux)
John Raoux/Associated Press
The rocket is seen on the launch pad.

A tweet from an observer at the scene in Florida: