Self-proclaimed Jihadist group Ansar Beit Al-Maqdis issued a statement on Monday declaring its responsibility for Saturday’s bombing in Egypt’s Suez Canal city of Ismailia, reported Al-Ahram Arabic news website.

At least six were wounded after a detonated car exploded near the army intelligence building in the city east of Cairo. The force of the blast caused part of the building's wall to collapse.

According to security sources, another undetonated car bomb was found while security personnel were sweeping the area.

In its statement, the Sinai-based militant group accused the army intelligence apparatus of being “the spearhead” in a war that benefits only the enemies of the nation “from Jews and Christians.”

“We reiterate our advice to your people in Egypt to avoid army and police buildings because they are legitimate targets for jihadists,” said the group which has previously claimed responsibility for several militant attacks, including the bomb that targeted the interior minister's motorcade on 5 September.

Military spokesman Ahmed Ali labelled the Saturday explosion in a statement as a terrorist attack.

"This is a continuation of a series of cowardly terrorist attacks committed by sectarian factions against the people of Egypt," he added.

Since the 3 July removal of Islamist president Mohamed Morsi, militant attacks targeting security forces have been on the rise, mostly in Sinai – the area suffering a security vacuum since the January 2011 Revolution that toppled Hosni Mubarak’s regime.