BANGKOK — For about an hour on Wednesday, the website of Myanmar National Television carried a surprising report: A mass prisoner amnesty the previous day, it said, had included seven members of the country’s military who were briefly jailed for a massacre of Rohingya Muslims.

The report was quickly taken down and was strongly denied by a government spokesman, U Zaw Htay. “It’s not true, it’s false news,” he said. “They are still in prison.”

The jailing of the seven, three officers and four soldiers, was announced only on April 10, a rare admission of guilt by armed forces accused by the international community of unleashing a scorched-earth campaign in northern Rakhine State last year that compelled around 700,000 Rohingya Muslims to flee Myanmar, a predominantly Buddhist country, for Bangladesh. The United Nations has called the military campaign “ethnic cleansing.”

The television network issued an apology for its piece, which had shown men emerging from a prison in Sittwe, the capital of Rakhine State, and one of them shaking hands with a uniformed prison official. The network did not make clear what had happened, saying only that “further investigation” had revealed its information to be incorrect.