KIEV, Ukraine (AP) — A top Ukrainian opposition leader on Thursday urged protesters to maintain a shaky truce with police after at least two demonstrators were killed in clashes this week, but some in the crowd appeared defiant, jeering and chanting “revolution” and “shame.”

Emerging from hours-long talks with President Viktor Yanukovych, opposition leader Oleh Tyahnybok asked demonstrators in Kiev for several more days of a truce, saying the president has agreed to ensure the release of dozens of detained protesters and stop further detentions.