The officials say the explosion took place early Tuesday in a desert area south of el-Arish, the provincial capital of North Sinai. The pipeline carries natural gas to Jordan and feeds heavy industry factories in central Sinai.
The officials say pipeline technicians were forced to shut the flow of gas in order to get the fire under control. They spoke on condition of anonymity because they are not authorized to talk to media.
There have been scores of attacks on the pipeline since the 2011 uprising that toppled autocrat Hosni Mubarak and the security vacuum that ensued.
A Sinai-based militant group, Ansar Beit al-Maqdis, has claimed responsibility for several such bombings.