A European rocket has been scheduled to launch Sunday from French Guiana on a mission to bring oxygen, food, water and equipment to the international space station.

The rocket will carry 21 tons of cargo to the space station, according to a news release from Arianespace, the commercial arm of the 13-country European Space Agency.

It is the first of nine missions that Arianespace has arranged from this South American country to service the space station over the next several years.

The launch, originally scheduled for Saturday, was pushed back to 12:59 a.m. Sunday (10:59 EST Saturday) to allow for more checks on the launch pad, officials said.