CONAKRY, Guinea — A crowd angry about an Ebola outbreak that has killed 86 people across Guinea attacked a center where victims were being held in isolation, prompting an international aid group to temporarily evacuate its team, officials said Saturday.

The violence took place in the southern town of Macenta, where at least 14 people have died since the outbreak emerged last month. The mob who descended upon the clinic accused Doctors Without Borders health workers of bringing Ebola to Guinea, where there had never previously been any cases.

Some young people threw rocks at the aid workers, though no one was seriously hurt, said Sam Taylor, a spokesman for Doctors Without Borders.

“We understand very well that people are afraid because it is a new disease here,” Taylor said. “But these are not favorable working conditions so we are suspending our activities.”

Patients are continuing to receive treatment from Guinean health ministry personnel, Taylor said.

Guinea’s government swiftly condemned the attack, saying that Doctors Without Borders and other international aid groups are key to stopping the spread of Ebola.

“The international community has rapidly mobilized to help us in these difficult moments with considerable medical support and specialists on the ground at the disease’s epicenter,” the statement said. “That’s why the government is calling on people to stay calm and allow our partners to help us eradicate this epidemic.”