Police probe terror links after bombs hit Borussia Dortmund bus

German police were today investigating possible extremist links over a bomb attack on the Borussia Dortmund football team’s bus, after conflicting letters claimed responsibility.

Dortmund defender Marc Bar tra, 26, and a police officer were injured last night following three explosions as the players headed to their stadium for a Champions League quarter-final match against AS Monaco.

Investigators were today examining a letter left at the scene, which reportedly claimed Germany is on an “Islamic death list” because of its military involvement in Syria and referred to the terror attack on a Christmas market in Berlin.

But another letter said to have been posted online claimed an anti-fascist group carried out the attack because Dortmund had not done enough to fight racism, right-wing populism and neo-Nazism and said the attack was a “symbol of the politics” of the club.

Police are also looking into whether both letters are a deliberate attempt to mislead the investigation.

Bartra needed surgery after suffering a broken bone in his right wrist and to remove shrapnel from his body. His fiancée Melissa Jimenez was at his bedside and he was expected to make a full recovery.

The injured policeman was a motorcycle outrider escorting the coach to the stadium when the three bombs detonated. He suffered hearing damage.

The devices — reportedly pipe bombs — went off as the vehicle was six miles from the Westfalenstadion venue.

Coach driver Christian Schulz, 46, managed to keep control of it as the blasts shattered windows and players cried out in panic.

The Süddeutsche Zeitung newspaper in Munich claimed the letter found at the scene claimed responsibility for Islamic State and condemned flights over Syria by German Tornado planes.

It was also said to mention the Christmas market truck attack in Berlin on December 19 in which 12 people died, and said sportsmen and other celebrities “in Germany and other Crusading nations” were “on a death list of the Islamic State” because of the West’s involvement in Syria.

The letter demanded withdrawal of the German Tornados from Syria as well as the closure of the US air base at Ramstein in Germany.

Drone operations against Middle East terrorists are controlled from that base.

Authorities have not ruled out a grudge attack against the club. Their match was postponed following the explosions and was due to be played today amid heightened security.

Borussia Dortmund fans opened up their homes to give stranded Monaco fans somewhere to stay for the night.