Over 200people were killed and another 125 got injured in fresh Egypt mosque attack (Details, pics)

More than 200 people have been killed after a gun and bomb terror attack at a packed mosque in Egypt's North Sinai province today.

Another 125 people are reported to have been injured, making the attack one of the worst in recent memory.

The terrorists reportedly detonated a bomb before firing on fleeing worshippers while blocking escape routes with burnt-out cars.

The suspected Islamic State attack took place at the Al-Rawdah mosque in Bir al-Abed, near El-Arish, during Friday prayers.

An improvised explosive device (IED) is believed to have been used before it was followed up with machine gunfire from multiple gunmen using four off-road vehicles.

A witness said: 'They were shooting at people as they left the mosque.

'They were shooting at the ambulances, too.'

Some reports have claimed the bomb was set off in the children's kindergarten area of the mosque before the terrorists - in military uniforms and wielding black flags - slaughtered those who fled.

They added that IS militants had blocked escape routes from the area by blowing up cars and leaving the burning wrecks blocking the roads.

Another report claims that terrorists wearing suicide vests hid themselves among the people at the mosque before detonating the bombs. 

MP Mustafa Bakri branded the situation 'catastrophic' on Twitter.

He added: 'The terrorists wore masks and surrounded the mosque during prayers, and terrorists wearing belts were hidden among the worshippers.' 

A tribal leader and head of a Bedouin militia that fights Islamic State said that the mosque is known as a place of gathering for Sufis.

The Islamic State group shares the puritan Salafi view of Sufis as heretics for seeking the intercession of saints.

MENA reported that Egypt's presidency declared a three-day mourning period for the attack, as President Abdel-Fattah el-Sissi convened a high-level meeting of security officials.

Cairo's international airport boosted security following the attack, with more troopers and forces seen patrolling passenger halls, conducting searches and manning checkpoints at airport approaches.   

The jihadists had previously kidnapped and beheaded an elderly Sufi leader, accusing him of practising magic which Islam forbids, and abducted Sufi practitioners later released after 'repenting.'

The group has killed more than 100 Christians in church bombings and shootings in Sinai and other parts of Egypt, forcing many to flee the peninsula.

The military has struggled to quell the jihadists who pledged allegiance to IS in November 2014.

IS regularly conducts attacks against soldiers and policemen in the peninsula bordering Israel and the Palestinian Gaza Strip, although the frequency and scale of such attacks has diminished over the past year.

They have since increasingly turned to civilian targets, attacking not only Christians and Sufis but also Bedouin Sinai inhabitants accused of working with the army.