Red Bull and Toro Rosso on Sunday confirmed they are to be supplied with engines by Renault next season.

The teams issued statements making clear that Red Bull with continue with Renault while Toro Rosso return after switching to Ferrari this year.

Renault and Red Bull were at loggerheads last year after a decline in performance, but this year they have revived their fortunes.

Red Bull driver Australian Daniel Ricciardo used his latest updated Renault engine to claim his maiden pole position for Sunday's Monaco Grand Prix.

Both teams have agreed two-year deals for 207 and 2018.

Red Bull team chief Christian Horner said: 'After the reconstruction that Renault has undertaken, clear progress has been made, which has made it logical to continue with the TAG Heuer-badged (Renault) engine.'