ISTANBUL, Dec. 23 (Xinhua) -- Turkish police detained five people in Istanbul on Monday on suspicion of financing Islamic State (IS), state broadcaster TRT reported.

Acting on an investigation by the Chief Public Prosecutor's Office, authorities identified seven suspects allegedly involved in sending funds to IS members in conflict zones, TRT said.

Arrest warrants were issued on charges of "membership of an armed terrorist organization" and "violating the Law on the Prevention of Terrorism Financing."

Police conducted simultaneous raids at seven addresses across Istanbul, detaining five suspects, TRT reported, adding that efforts to apprehend the remaining two were underway.

During the raids, 55,000 euros and various organizational documents were seized.

Türkiye designated IS a terrorist organization in 2013 and has been targeted by the group in several attacks. Ankara has conducted counter-terrorism operations both domestically and abroad in response. ■