(ISTANBUL) -- A suicide bombing that targeted police in Istanbul, Turkey injured 22 people - 12 civilians and 10 police officers - on Sunday. There has been no claim of responsibility.
It happened in Taksim Square, a major tourist attraction and transportation hub.
"Those who threaten Turkey's peace, security and development will not be tolerated," said Turkish Prime Minister Recep Tayyip Erdogan, in a televised speech.
The city has been targeted in the past by Kurdish separatist militants and al Qaeda. In recent weeks, Turkish police have arrested several people suspected of supporting al Qaeda in Afghanistan. Officials say the bomber, who has not been identified, appears to have been male.
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