A natural gas line explosion caused a fire in Giza’s Manshiyet Dahshour neighbourhood, while a train crashed in Suez early Saturday morning, state-media reported.

The gas pipeline fire was extinguished before it reached any residential homes and left no injuries or casualties, state media reported. Approximately 20 ambulances and 50 fire trucks reportedly went to the site.

It was unclear whether the explosion was the result of an accident or a militant attack. Militants have targeted the main gas pipeline in North Sinai numerous times over the past year.

In a separate incident, an explosive device went off along a railroad near Suez leading to a train crash, state-owned Al-Ahram reported.

On Friday, a home-made explosive device was found in one of Alexandria’s tram stations, but security forces sealed off the area and defused the bomb.

Earlier the same day, another improvised bomb exploded near an Alexandrian police station. No casualties were reported.

Small bomb explosions, including on trains and along railways, have become a relatively frequent occurrence over the past year in Egypt. Last November, a bomb aboard a train killed four people.