Formula 1 drivers will be banned from using the DRS in the tunnel at this weekend's Monaco Grand Prix after the FIA reacted to drivers' concerns.
On the back of continued fears from drivers that it could be too dangerous to use the DRS through the tunnel in practice and qualifying, FIA race director Charlie Whiting wrote to the Grand Prix Drivers' Association members to tell them he agreed with their stance.
To prevent the possibility of drivers being forced to take risks through the tricky right-hander in the tunnel by trying out DRS for a speed boost, Whiting told drivers that he was stamping out the possibility.
The FIA will lay down a ban on DRS between two points on the Monaco circuit - distance markers 1350m and 2020m - which is the area around the tunnel. DRS use will be free elsewhere and the overtaking zone will be laid out on the start-finish straight – as the tunnel area was too dangerous.