Bomb wounds four at Cairo rally

Two policemen were among those hurt in a bomb blast at a rally in Cairo for presidential candidate Abdel Fattah al-Sisi.

The device had been planted in the ground under a tent that hosted the gathering in support of Sisi, who was not present when it exploded.

Sisi, who is widely expected to trounce his only rival, leftist leader Hamdeen Sabbahi, led the removal of Islamist president Mohamed Morsi last year.