Egypt policemen killed in bombing of Cairo checkpoint

A bombing killed six policemen at a checkpoint in Cairo on Friday, the latest in a series of attacks in the capital targeting security forces and officials, state media reported.

The attack occurred in the western Talibiya neighbourhood of the capital, shortly before Muslim Friday prayers and when Cairo's streets are mostly empty, state television reported.

The bloodied bodies of several policemen could be seen at the blast site next to police vehicles that had been stationed there, an AFP photographer reported.

Pictures on Twitter showed a dust cloud from the explosion.

Police cordoned off the area with yellow tape as they searched for more explosives.

The "Hasm Movement" claimed the attack in an Arabic language message on Twitter.

Militants have repeatedly attacked policemen and soldiers since the army overthrew Islamist president Mohamed Morsi in 2013 and unleashed a bloody crackdown on his followers.

Most of the attacks are conducted in the Sinai Peninsula by a branch of the Islamic State group, which has killed hundreds of soldiers and policemen there.

But militants have also targeted security forces and government officials in the capital.

MORE: Egypt's Sinai: Car bomb attack kills eight soldiers

An Egyptian judge in one of the trials of Morsi escaped unharmed last month when a car bomb exploded as he drove by.

That attack came days after a roadside bombing targeting a police convoy killed a passerby.

In September, militants set off a car bomb as the country's deputy state prosecutor was passing. He too escaped unharmed.

Most of the Cairo attacks in recent months have been claimed by two little known militant groups, Liwa al-Thawra and the Hassam Movement.

Police say they are affiliated with Morsi's Muslim Brotherhood movement, which was banned months after his overthrow and listed as a terrorist organisation.

The Brotherhood, which espoused grassroots work and change through elections, denies it is involved in violence.

The group had been the country's largest opposition movement under veteran strongman Hosni Mubarak and dominated polls after his overthrow in 2011.

MORE: Egypt militant group claims prosecutor bombing

In 2012, it won a presidential election with its candidate, Morsi, whose divisive rule led to mass protests a year later that prompted the army to overthrow him.

Hundreds of his supporters were killed in protest clashes with police and the army in the following months.

The Brotherhood now operates as an underground and splintered movement, with some of its followers believed to have embraced attacks against policemen while others insist on non-violence.

Friday's bombing came days after the interior ministry said police killed three members of the Hassam Movement in the country's south, and weeks after it announced breaking up one of the group's cells.