Honda are "open" to the possibility of supplying Red Bull with engines, according to motorsport boss Yasuhisa Arai.
Earlier this month it emerged that Red Bull Racing had approached Honda after being rejected by both Mercedes and Ferrari.
However McLaren CEO Ron Dennis is believed to have vetoed any deal as the Woking team wish to have an exclusive relationship with the Japanese manufacturer.
But despite that, Arai has revealed that Honda are still in talks with Red Bull.
He said: "Obviously we cannot discuss details at this moment.
"We have been approached by the team but discussions are ongoing and nothing has been decided.
"I always say this season: we are always open, so we are on discussions that are ongoing – that's it."