The results of the run-off election, which took place Wednesday, were delayed because the commission said it needed to investigate allegations of fraud, The Wall Street Journal reported.
The results were originally set to be released Thursday and the additional delay has caused supporters of the two candidates -- Mohammed Morsi of the Muslim Brotherhood and former Prime Minister Ahmed Shafiq -- to worry the ruling military junta is attempting to change the results, Bikyamasr.com reported Saturday.
Morsi's supporters have already claimed victory in the election, with Muslim Brotherhood members demonstrating in central Cairo, demanding an announcement of the official result, the BBC reported.
Egypt's ruling Supreme Council of the Armed Forces said the Muslim Brotherhood's early claims of winning have caused instability in the country.
"Prematurely announcing the results of the elections is the reason behind the political confusion we are going through," the statement by the SCAF said.