A bomb blast in Bani Jamra village in Bahrain has left three policemen slightly wounded

A bomb blast in Bani Jamra village in Bahrain has left three policemen slightly wounded, Persian Gulf kingdom’s interior ministry said in a statement on Twitter posted late Friday.
  
The three were on patrol in the village when the blast occurred.
  
It said that the three sustained minor injuries, describing the explosion as a "terrorist" blast and adding that "necessary steps are being taken", without elaborating.
  
Witnesses said that the blast occurred late Friday and that security forces swiftly sealed off the village, which lies not far from the capital Manama. They added that a young protester was also injured in clashes with police in another village, Sanabes, late on Friday.