A bomb has killed at least six people near a Shia shrine in a suburb of the Syrian capital Damascus.

State media said 13 people were also wounded in the explosion in the Sayeda Zainab district.

The semi-official Addounia television said the bomb was placed in a rubbish bag. Another bomb in the area was defused, the station said.

Groups opposed to President Bashar al-Assad say seven people died in the blast.

The neighbourhood is inhabited by a mix of Sunni and Shia Muslims.