Turkish authorities detain more than 100 people taking part in an anti-NATO protest march organised by the Communist Party of Turkey (TKP), Reuters reports. The arrests occur in Ankara on Sunday ahead of an alliance summit in the Turkish capital next week. According to the TKP, the march is held in opposition to NATO, and the party says the detained participants include those who joined the demonstration. The reports describe the event as part of broader protest activity by leftist groups against NATO in the lead-up to the summit. Reuters frames the detentions as an action by Turkish authorities against participants in the protest march, with TKP providing the account of the number of people detained through a party statement. Other details about the specific locations, charges, or the identities of those detained are not provided in the available excerpts. The event underscores the heightened political tension around NATO’s upcoming meeting in Ankara, with authorities and opposition groups taking opposing positions.