Japan's Aerospace Exploration Agency (JAXA) said on Wednesday that its unmanned Epsilon-6 rocket was ordered to self-destruct after an "abnormality" occurred shortly after liftoff.

JAXA officials said the self-destruction signal was sent after it was decided that the rocket, which had been carrying eight satellites, was unable to fly safely to its planned orbit.

Hiroshi Yamakawa, president of JAXA, apologized for the failure, saying the agency was "terribly sorry that we couldn't meet the Japanese people's expectations."

He added they would take counter-measures to prevent a recurrence. 

What caused the malfunction? 

Yasuhiro Funo, who led the project, said the self-destruct signal was sent to the rocket 10 minutes after launch because of "position abnormalities." 

Funo told reporters that a technical issue was detected before the final stage of the launch and they ordered for the rocket's destruction because they were sure where it would go. 

That meant there would be safety concerns about where the machinery could fall, Funo said. The rocket's parts were assumed to have landed in the Philippines Sea, Funo added. 

The 26-meter (85-foot) rocket had been carrying satellites that were meant to try out some of the new technologies designed by researchers. 

A livestream for the launch was halted when engineers detected a fault. They told viewers there had been a problem with the launch.

Epsilon rocket hoped to launch private satellites into orbit for 1st time

The launch  from the Uchinoura Space Center in the southern Japanese prefecture of Kagoshima had originally been scheduled for last Friday but was delayed due to the location of a positioning satellite in space.

It was JAXA's first failed launch since a H2A rocket carrying two satellites meant to monitor North Korea had its flight aborted in 2003.

Among the eight satellites carried by the Epsilon rocket were two commercially developed ones. It was the first time an Epsilon had carried satellites from a private company, with JAXA aiming to set up commercial satellite launch business.

The solid-fuel Epsilon rocket has been in use since 2013. The rocket is a successor to the solid-fuel M-5 rocket that was retired in 2006 because of high costs.

rm, tj/wmr (Reuters, AFP)