Benedikt Howedes and Julian Draxler have been training as normal after being involved in a motorsport accident which has impacted Germany's pre-World Cup training camp in northern Italy.

Formula One driver Nico Rosberg and professional touring car driver Pascal Wehrlein were taking part in an event with Germany's sponsors Mercedes on Tuesday when Wehrlein's car struck two people who were subsequently taken to hospital, with one of them being airlifted.

Howedes and Draxler had been riding in the cars at the time of the accident, which has left a deep mark on the mood at the training camp.

National team general manager Oliver Bierhoff addressed the situation at a press conference on Wednesday morning after visiting the victims in hospital.

"Both drivers are really shocked," he said. "The players too. They wanted to speak only briefly and then rejoin the group. There is great shock within the team."

Howedes reportedly helped with the initial treatment at the scene but played down his role.

"I have done nothing that anyone else would not do," he said. "In such a situation obviously you want to help. I think the images will remain in my head for some time. I have spoken with the coaches and the team and that has helped."

Real Madrid midfielder Sami Khedira added: "We talked in groups within the team, along with Bene and Julian. Such accidents can happen from time to time, but we must still focus on our work. We wish the best to everybody involved."

Rosberg, who leads the 2014 Formula One drivers' standings after his win in Monaco over the weekend, said on Twitter: "I am shocked by the accident. My thoughts are with the two people who were injured and I wish them a fast recovery."

German daily Bild reported that Rosberg slowed his car to avoid hitting a spectator who had walked on to the track, followed by a marshal, and Wehrlein swerved to avoid him but hit the two people, one of whom was air-lifted to hospital shortly before 3pm local time on Tuesday.

A statement on Mercedes-Benz Motorsport's Facebook page said: "An accident occurred during a visit to the training camp of the German National Football Team: while driving on a closed circuit, DTM driver Pascal Wehrlein injured two people whom he unexpectedly encountered walking on the closed course.

"We cannot offer any statement concerning the severity of injuries, as both injured parties are currently undergoing medical treatment.

"Pascal Wehrlein was uninjured in the accident. We deeply regret this accident and send wishes of quick recovery to the injured. We will work in full cooperation with the authorities in determining the exact circumstances of the accident."