American and two Russians return to Earth after a year in space

Nasa astronaut Frank Rubio, and cosmonauts Sergey Prokopyev and Dmitri Petelin have returned to Earth (Dmitri Lovetsky/AP)

A Nasa astronaut and two Russian cosmonauts have returned to Earth after being in space for just over a year.

American Frank Rubio set a record for the longest US spaceflight as a result of the extended stay.