"There was a sudden explosion, a mortar round flew through the window, all the equipment was destroyed," said Anna Kravtsova, a doctor at the Vishnevskiy Hospital. "They killed one person, and one person was injured and taken away."
Only the dentistry unit suffered damage, witnesses said, but it is one of Donetsk's larger hospitals, only 4 kilometres from the city's main square, and has also provided treatment to civilian victims of the conflict.
The incident follows a night of shelling in another central neighbourhood. The city council said in a statement posted on its website that three people had been killed and five wounded, and several residential buildings destroyed.
As the rebels struggle to push back Kiev's forces, fears of Russian intervention have grown. Western leaders have accused Russia of massing troops on the border with Ukraine, although Russia has denied those claims.
Dark plumes of acrid smoke from burning rubber rose above Independence Square as workers guarded by armed men in camouflage dismantled some of the barricades surrounding the area.
The square and surrounding streets were the site of huge protests during the winter, which helped oust the country's pro-Russian former president Viktor Yanukovych from power. New president Petro Poroshenko was elected in May, but many have said they will remain on the square to ensure the new government follows through on promises of reform.
