Cairo, Feb 26 (IANS): At least one person was killed and several wounded Thursday in bomb explosions south of Egypt's capital Cairo, the country's health ministry said.

The bombs went off outside the offices of cell phone companies, a restaurant and a police station in Giza province, Xinhua news agency reported citing a ministry statement.

One bomb went off outside a pizzeria in the residential Imbaba district of Giza early Thursday, killing one restaurant staff and wounding four others, the statement added.

The blast tore off the legs of the victim who passed away before reaching the hospital, health ministry spokesman Hossam Abdel Ghaffar said.

Three other bombs exploded outside two offices of British firm Vodafone and a branch of United Arab Emirates-owned Etisalat, damaging the store fronts, state-run Ahram website reported, noting the branches were closed and no one was injured.

Later, six people, including four policemen, were injured in a separate bombing outside Waraq police station. The bomb disposal team managed to defuse two other bombs planted near the same station.

The interior ministry said the authorities had been on alert for attacks in the run-up to the parliamentary election next month.

A wave of militant attacks, mainly in the Sinai Peninsula, hit the country after the ouster of the Islamist president Mohamed Morsi in July 2013.

The Islamist militants cited retaliation against the security crackdown over Morsi's supporters, which left nearly 1,000 dead while thousands were jailed. Hundreds of security men were killed in the attacks.