CAIRO - A bomb thrown from a car damaged an Egyptian police car in central Cairo on Tuesday in a drive-by attack by assailants who also raked the vehicle with gunfire, security officials said.

It was not immediately clear if there were any casualties in the attack, which targeted a traffic police checkpoint on a usually busy flyover near the upscale residential district of Zamalek, the officials said.

It was the latest in a series of attacks against security forces. Bombings and shootings have become commonplace since the army deposed Islamist President Mohamed Morsi in July following mass protests against his rule.

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