Masked gunmen have blown up a terminal of the Egyptian natural gas pipeline to Israel and Jordan in a pre-dawn attack, security officials said.
The officials said the attack was carried out by at least four assailants.
The terminal is located in the city of El-Arish in the northern part of Egypt's Sinai Peninsula, about 30 miles west of the Israeli border.
The attackers ordered the guards on duty to leave and then blew up the terminal, starting a huge fire that sent flames shooting into the air that lit up the night sky, according to the officials.
There were no casualties, they said.
It was the second attack on the pipeline in as many weeks and the fourth since an 18-day uprising toppled President Hosni Mubarak's regime on February 11.
No one claimed responsibility for today's explosion but disgruntled Bedouin tribesmen in the area have been blamed for attacking the pipeline in the past. Islamists opposed to Egypt's 1979 peace treaty with Israel have also been suspected.