Sisi was quoted by BBC as saying: "What is happening is an attempt to stop us from our efforts in the fight against terrorism."

"The armed forces and the police will avenge our martyrs and restore security and stability with the utmost force.," the President added.

At least 235 people were killed as militants launched gun and bomb attack on a mosque in Egypt's North Sinai province, media reports said on Friday.

According to reports, 109 people were injured in the incident.

On Friday Morning, a massive explosion in Al-Rawada mosque, located in the town of Beur El Abes, in North Sinai’s Al-Arish, Egypt Independent reported.

The attack took place during Friday prayers.

Large number of worshippers had assembled at the mosque when the attack took place.

Three days of national mourning has been announced following the attack.

Responding to the attack, the Egyptian military said they had carried out airstrikes on terrorist targets.

Condemning the attack, US President Donald Trump said he would like to talk to the Egyptian President over the attack and terrorism issue.

"Will be calling the President of Egypt in a short while to discuss the tragic terrorist attack, with so much loss of life. We have to get TOUGHER AND SMARTER than ever before, and we will. Need the WALL, need the BAN! God bless the people of Egypt." Trump tweeted.

Trump also called the attack "cowardly". "Horrible and cowardly terrorist attack on innocent and defenseless worshipers in Egypt. The world cannot tolerate terrorism, we must defeat them militarily and discredit the extremist ideology that forms the basis of their existence!"

UK President Theresa May tweeted to say: "Appalled by the sickening attack on a mosque in North Sinai. Condolences with all those in #Egypt affected by this evil and cowardly act."

Indian Prime Minister Narendra Modi took to Twitter to condemn theattack. "Strongly condemn the barbaric terrorist attack on a place of worship in Egypt. Our deep condolences at the loss of innocent lives. India resolutely supports the fight against all forms of terrorism and stands with the people as well as Government of Egypt."