Russia's Mars craft off course

A Russian spacecraft bound for one of Mars' moons has gone off course after reaching Earth orbit, the Russian space agency has said.

The unmanned Phobos-Grunt probe was launched successfully on board a Zenit-II rocket, but two engines failed to fire once it reached orbit, resulting in the craft going off course.

Russian authorities say they remain in contact with the craft and have three days to return it to its course before its batteries run out.

Al Jazeera's Neave Barker reports from Moscow, the Russian capital.