Toto Wolff says the situation at Mercedes is "getting a bit intense internally", but wants to continue letting Lewis Hamilton and Nico Rosberg race.

Hamilton has made clear that he believes Rosberg deliberately went off in qualifying for the Monaco Grand Prix in order to secure pole position, with Rosberg going on to win the race. As part of the fallout it has emerged that both drivers have gone against team instructions during recent races and turned up their engine settings in an attempt to secure victory.

Mercedes executive director (technical) Wolff told exclusively in Monaco that the situation was escalating but that he doesn't want to impose strict team orders to deal with it at this stage.

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"It was OK, it tends to be overestimated and overanalysed," Wolff said. "Both of them know that they have a once in a lifetime opportunity to have a shot at the world championship. They have a tool in their hand which is able to deliver and their main enemy is their team-mate.

"It is clear that it is getting a bit intense internally, but I think we owe it to the sport to let them race as long as it is kept within the philosophy."

And Wolff admitted he would need to ensure the drivers continue to speak together in a team environment to get any issues out in the open.

"We always sit down. We have done throughout the weekend, we've done it before the weekend, we've done it in Barcelona. Sometimes one is upset, then it's the other one. I guess it's normal and understandable and we have great respect for that."