Police in Istanbul have detained five people with alleged links to Al-Qaeda, a news agency reported on Sunday.
The five were detained in a sweep against suspected Al-Qaeda terrorists in the city ahead of a summit of leaders of Black Sea nations, the Dogan news agency reported. Russian President Vladimir Putin and other leaders are scheduled to attend the summit on Monday.
Dogan said Chechens were among the detained but did not say how many.
Police in Istanbul would not comment on the report.
Last week, security forces detained 23 people in an operation against suspected Al-Qaeda terrorists in the northwestern province of Bursa.
Suicide bombers linked to Al-Qaeda hit Istanbul in 2003, killing 58 people in attacks that targeted two synagogues, the British Consulate and a British bank. In February, a court sentenced seven people to life in prison for the bombings.