Also, according to some sources, gunmen opened fire in other districts of the former capital of Kazakhstan.
Two police officers were killed as a result of the shooting, several others are wounded.
One attacker, 27, has been captured but an accomplice is still at large, the interior ministry said in a statement.
One attacker, 27, has been captured but an accomplice is still at large, the interior ministry said in a statement, BBC reports.
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