Heptathlon Olympic gold medallist Jessica Ennis, swimmer Rebecca Adlington and former triple jumper Jonathan Edwards tweeted:
Congratulations @mo_farah on the birth of his twins!!! Amazing news! Hope mum + babies are doing well xx
Great news about the birth of my little baby girls! Twins...! Thanks to my wife..!! Shabba!!
Double Olympic champion Mo Farah has become father to twin girls.
The Team GB double Olympic champion runner has announced his wife Tania, who was seen cheering him on while heavily pregnant, had given birth.
Farah, who is already stepfather to Rihanna, dedicated his 5,000m and 10,000m gold medals to the unborn pair after he topped the podium in London.