Sisi re-elected as Egyptian president

Right after polling stations were closed, Sisi hailed the Egyptians for participating in the elections.

"The voice of the Egyptian masses will undoubtedly bear witness to the fact that our nation's will imposes itself with a force that knows no weakness," Sisi said on Twitter.

"The scenes of the Egyptians before the polling stations will remain sources of honor and pride for me, and a shining proof of the greatness of our nation."

The polls are held amid intense security presence and tight security measures taken by the army and the police around polling centers throughout Egypt.

Voters cast their ballots at 13,706 polling stations nationwide, with about 18,000 judges overseeing the voting process that is also monitored by at least 53 local organizations and nine international ones, besides more than 680 foreign reporters.

Hours before the election kicked off, the police announced the killing of six terrorists during a raid in Beheira province north of the capital Cairo.

The Interior Ministry said the extremist cell was involved in Saturday's car bomb attack in the nearby coastal province of Alexandria that killed two policemen.

Terror activities in Egypt have killed hundreds of security men and civilians since the military toppled Islamist president Mohammed Morsi in July 2013 in response to mass protests against his oneyear rule and his currently outlawed Brotherhood group.

The country's elections authority announced on Wednesday that the governorates of Cairo, Giza, Alexandria and North Sinai, which suffer the most from terrorist attacks, witnessed the highest voter turnout throughout the three days of elections.

Reuters contributed to this story.