The US has revealed it has released $575m in military aid to Egypt that had been frozen since the ousting of President Mohammed Morsi last year.

The news came as Secretary of State John Kerry visited Cairo just two weeks after former army chief Abdul Fattah al-Sisi was sworn in as president.

After talks with the new leader, Mr Kerry stressed the importance of upholding the rights of all Egyptians.

Mr Sisi won May elections, vowing to tackle "terrorism" and bring security.

The retired field marshal overthrew Mr Morsi last July amid mass protests against his rule.

He has since been pursuing a crackdown on Mr Morsi's Muslim Brotherhood, which urged a boycott of the 26-28 May elections. Liberal and secular activists also shunned the poll in protest at the curtailing of civil rights.