US rocket explosion: Company pledges to find root cause
An unmanned supply rocket bound for the International Space Station has exploded during its launch from the US state of Virginia.
Antares, a 14-storey rocket built by Orbital Sciences Corp, combusted seconds after leaving the seaside launch pad at Wallops Flight Facility.
No-one was hurt and the cause is being investigated.
Frank Culbertson, Orbital Sciences vice-president, promised a rocket would fly again from the same site.
