British GP: Lewis Hamilton & Nico Rosberg on 'final warning' at Mercedes

Lewis Hamilton and Nico Rosberg are on a "final warning" that they will be severely punished if they crash again but remain free to race.

Their Mercedes team said they had "strengthened our rules of engagement to include much greater deterrents to contact between our cars".

Boss Toto Wolff said the drivers faced "sporting and financial consequences".