A group of militants bombed early Sunday a pipeline in North Sinai that provides natural gas to Jordan, security sources said.
"The gunmen bombed part of the pipeline in Lehfin area in North Sinai and another part of the pipeline north of Arish International Airport," a security source told Xinhua.
Security forces have rushed to the scene.
The attacks came after the Egyptian army ousted Islamist-oriented president Mohamed Morsi on Wednesday in response to millions of protesters who took to the streets and public squares across the country demanding his removal.
Islamist supporters of the ousted president condemned the ouster as "a military coup" and vowed to sacrifice for Morsi's legitimacy.
On Friday, at least five soldiers were killed in North Sinai in armed attacks by extremist Islamist groups on Arish Airport, a security camp in Rafah, a police station, two security checkpoints in Sheikh Zuwaid and other security premises
Clashes on Saturday between Morsi's Islamist supporters and his opponents celebrating his ouster killed at least 35 and injured over 1,400 across the country.