Vettel and Webber made contact when the German attempted to pass the Australian for the lead. The incident forced Vettel into retirement, while Webber had to pit for repairs, handing McLaren driver Lewis Hamilton the lead.
While Vettel said he was not at fault, Webber claimed his team-mate had turned right too early, thus causing the crash.
“Seb had good a top speed advantage and he went down the inside. We were side by side and then looks kike he turned pretty quickly to the right and we made contact,” said Webber.
“It definitely happened fast. It’s a shame for the team, but not an ideal day. The McLarens were solid today. It was good race between all four of us up until then.
“Neither want to make contact but it can happen sometimes when both are in front. It is never ideal but it happened.”
The Australian, still leading the championship after finishing in third, said the win was still not guaranteed at the point of the accident.
“There was a long way to go in the race so it was not a guaranteed victory,” he said. “I still got a few points, but it was an interesting few metres on track between both of us. It wasn’t the result neither of us wanted.”