There will be widespread anger if Egypt's presidential election result has been manipulated or the election has to be repeated, Essam El-Erian, a senior member of the Muslim Brotherhood, has warned in a statement to pan-Arab daily Al-Sharq Al-Awsat.

El-Erian, who is also deputy leader of the Islamist group's political wing, the Freedom and Justice Party, made the statement just hours before Egypt's electoral commission announces the winner of the runoff between the Muslim Brotherhood's Mohamed Morsi and former regime figure Ahmed Shafiq.

El-Erian also called on the ruling Supreme Council of the Armed Forces (SCAF) to hand over power to the newly-elected civilian president and denied there were ongoing negotiations between the Brotherhood and the SCAF.

In addition, he denied reports that the Islamist group was in talks with prominent liberal figure Mohamed ElBaradei and leftist legal expert Hossam Eisssa regarding one of them becoming prime minister if Morsi is declared president.

The Islamist figure denied that a 'crisis management' group, comprised of several non-Brotherhood figures, had been formed to manage the current period of escalating tension between the Brotherhood and the SCAF.

The 'crisis management' group was allegedly formed by non-Islamist forces to unite with the Brotherhood against the SCAF-issued changes to the temporary constitution and the dissolution of parliament.

The SCAF's decision to dissolve parliament was only in adherence with a High Constitutional Court decision, El-Erian added.

In the event that a suitable national figure is found, he could be offered the position of prime minister if Mohamed Morsi is announced president, El-Erian said.