ISTANBUL: Turkish police arrested 12 people in Ankara in an investigation targeting Islamic State jihadists, state-run Anadolu news agency said yesterday, hours after the US embassy there said it would remain closed for the day due to a security threat. The 12 suspects were among 20 people for whom detention warrants were issued by the Ankara state prosecutors' office, Anadolu said. It said they were foreign citizens and had been seeking to recruit new members to the group. Turkish authorities regularly detain Islamic State suspects and it was not clear whether there was any connection between the arrests and the US embassy move. Anadolu said the police operation was "planned previously". On Sunday evening, the US embassy in Ankara said it would be closed to the public yesterday due to a security threat and only emergency services will be provided.- Reuters