Chinese leaders have intensified their efforts to crack down on what they see as a budding separatist movement in Xinjiang led by Uighurs, who constitute a Turkic-speaking minority and typically practice Islam. In recent years, religious worship has been restricted in Xinjiang, and Uighur dissidents have been arrested.

The Chinese Ministry of Public Security said in a statement that the raid was a “great victory” in the fight against terrorism and the culmination of a 56-day “pursue and attack” operation. The statement, which appeared online a few hours after news of the terrorist attacks in Paris emerged here on Saturday, was later deleted without explanation.

In keeping with its practice of tightly controlling information about violence in Xinjiang, the government did not provide details about the people killed in the raid or the crimes they were accused of. Officials in Xinjiang declined to comment.

Human rights advocates criticized the government’s handling of the episode, saying Chinese officials should be more forthcoming about those killed in the raid, especially since children were among the dead.

“It’s long past time for Beijing to stop monopolizing the reporting on terrorism and its counterterrorism efforts,” Maya Wang, a researcher for Human Rights Watch in Hong Kong, wrote in an email.