Early reports suggest that voter turnout is not as high as it was during the Egyptian parliamentary elections in November 2011, although it is a mixed picture across the country.
People are speculating on Twitter about why this may be, with some suggesting that the absence of the threat of fines or the weather could be a factor.
The complete lack of lines in front of poll stations makes me wonder if the long lines for parliament elections were due to threat of fines
Many people didn't vote today to avoid the crowds and scorching heat. I think the turnout will increase at night and tomorrow #Egyelections
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His mother Princess Diana was killed in a car crash in Paris in 1997 when he was just 12 and his brother William was 15.
The 21-year-old, who was arrested on Sunday, also allegedly injured two other people in the attack in the German city of Reutlingen.
She was going to the aid of a family member who got out of the car in the middle of the park and was dragged away by a different tiger.