俄罗斯货运飞船抵达国际空间站

An unmanned Russian cargo vessel successfully docked with the International Space Station Sunday morning, breaking a string of failed attempts to resupply the station.

The Progress delivered more than three tons of food, fuel and supplies to the orbiting outpost.

Officials said although the previous supply launches had failed, the ISS was not in immediate danger of running out of supplies.

U.S. astronaut Scott Kelly and Russian cosmonauts Gennady Pakalka and Mikhail Kornienko are currently living and working on the ISS.

Three more astronauts are scheduled to join them later this month.