CHINA's Maritime Safety Administration (MSA) has reiterated warnings about transporting hazardous cargoes properly in the wake of the blast on the YM Mobility boxship docked at Ningbo, an accident captured on video last Friday that made headlines around the world.

Remarkably no one was injured in the explosion onboard the 6,589 TEU ship owned by Yang Ming, reports Singapore's Splash 247.

Initial reports from authorities in Ningbo suggest the fire came from explosive materials including lithium batteries and tert-butyl peroxybenzoate, a peroxo-compound that must be stored in temperatures not exceeding 30 degrees Celsius. On Friday, the temperature in Ningbo, the world's largest port, soared to as high as 39 degrees.

Citing the YM Mobility, as well as two other recent blazes on boxships around the world - the Northern Juvenile and the Maersk Frankfurt - the MSA in a release told shipping lines that they must "fully understand the severe and complex situation of the safety of the transportation of dangerous goods on ships in the high temperature season".

The ship is expected to be out of action for three months as it heads for repairs once investigations are over.