Blast rocks Turkey’s Diyarbakir; 4 policemen killed (VIDEO) (UPDATING)

Headline changed, details added (first version posted on 19:13)
Baku, Azerbaijan, March 31
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Latest on the bus stop blast in Turkish city of Diyarbakir
19:22 (GMT +4) Four policemen were killed as a result of the explosion in Turkish city of Diyarbakir, Haberturk TV channel reports.
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19:13 (GMT +4) A blast occurred near a bus station in Turkish city of Diyarbakir, the Haberturk TV channel reported March 31. Reportedly, at least seven people were injured in the explosion.
Witnesses said that an explosive device caused the blast. Ambulances have been dispatched to the incident scene.