ISTANBUL (AP) — Delegations from Russia and Ukraine met Monday in Turkey for their second round of direct peace talks in just over two weeks, although expectations were low for any significant progress on ending the3-year-old war after a string of stunning attacks over the weekend.

Ukrainian peace talks Monday amid heightened tensions after Ukraine's drone attack on Russian airfields, and unclaimed bridge explosions.

The second round of negotiations between the Russians and Ukrainians on a possible ceasefire has ended after about an hour, according to Russian news agencies. State news agency TASS and the Interfax agency cited their own sources as saying the talks were over and that there were no plans to continue the talks later in the day.