The Taliban spokesman, Zabihullah Mujahid, did claim in a Twitter post that the insurgents had “liberated” the city’s prison, releasing everyone inside. He did not say how many prisoners were inside.
Government officials, including Mr. Danish, denied that on Saturday.
Afghan reinforcements traveling to Ghazni from Gardez, to the east, and from Kabul, to the north, encountered repeated ambushes, destroyed bridges and delays, according to Afghan officials.
A pro-government militia commander, Ali Zafar, who was guarding a portion of a highway between Kabul and Ghazni, said on Saturday that his positions had been repeatedly attacked by the Taliban. But his group had managed to keep the road open for a reinforcement convoy of more than 150 vehicles, he added.
“Today, the road is blocked and yesterday they blew up a bridge on the highway, but that was after the reinforcement convoy passed,” he said, adding the situation in Ghazni was not good.
Ahmad Farid Omary, the head of Ghaznawyan TV, a Ghazni station, said most broadcasters were forced off the air because their employees had fled. The only broadcaster still operating, Mr. Omary said, was Radio Shariat, a Taliban station, which was using a mobile van to go on the air, changing its location frequently.
“Reinforcements got to the city yesterday, but they haven’t started fighting,” Mr. Omary said. He said that many Taliban fighters had taken refuge in people’s homes, but that government forces were preparing a counterattack to recover lost ground.