Backers of Egypt's toppled president say they will boycott country's upcoming elections

Supporters of Egypt's ousted Islamist president say they will boycott the country's upcoming presidential elections.

An alliance led by the Muslim Brotherhood, the group which toppled President Mohammed Morsi hails, said in a statement Sunday that the presidency is "not vacant." They called the upcoming May 26-27 election a "farce."

Former Field Marshal Abdel-Fattah el-Sissi, who led the overthrow of Morsi in July after millions demonstrated against him, is the front-runner in the upcoming elections. He faces Hamdeen Sabahi, a former left-leaning presidential candidate, in the vote.

The Brotherhood-led alliance also boycotted Egypt's January vote on a new constitution, which saw nearly 20 million people overwhelmingly support the new charter.

Egypt has been plagued by unrest and militant attacks since the July overthrow.