A court in the Czech Republic ordered the release of a senior Kurdish official on Tuesday, despite an extradition request from Turkey, which wanted to try him as a terrorist, according to the official’s lawyer and the Czech News Agency.

The official, Salih Muslim, the foreign affairs spokesman for the Movement for a Democratic Society, the political coalition that governs the Kurdish regions of northern Syria, was arrested in Prague early Sunday, at the conclusion of a high-level security conference to which he was invited by the Czech and American governments.

Turkey has charged him with involvement in terrorist incidents in Turkey, and last month offered a $1 million reward for his arrest, as one of its most-wanted terrorism suspects. That coincided with Mr. Muslim’s barnstorming around Europe over the past month, speaking out against Turkey’s offensive against the Kurdish-held enclave of Afrin in northern Syria.

In televised remarks, Bekir Bozdag, a spokesman for the Turkish government, denounced Mr. Muslim’s release as a political act. “This decision clearly means to support terror groups,” he said. “This decision will also have an effect of negatively influencing Turkish-Czech relations.”