South Korea's education ministry said Wednesday the planned rocket launch will be postponed due to fire safety problems.

South Korea had previously planned to launch a locally assembled space rocket called Naro-1, or the Korea Space Launch Vehicle-1 (KSLV-1), at 5 p.m. local time, its second such attempt after a technical glitch botched up the first launch in 2009. The first launch in 2009 was foiled by a faulty fairing assembly, which prevented the rocket from putting the satellite into the orbit.

South Korean and Russian experts are currently looking into the problems in fire protection facilities, according to the education ministry.