A suspected ISIS terror cell in Europe has been snared after two Iraqis wanted in connection for attacks on German trains were detained.

Czech authorities arrested a father-of-five and a woman at Vaclav Havel Airport in Prague today after Austria issued a European Arrest Warrant for the pair.

They are suspected of having fastened a steel cable across the tracks which run between Munich and Nuremberg which damaged the front window of a train in October last year.

Reinforced wooden wedges had also been placed on the track in the hope of derailing one of the trains.

The Iraqis are suspected of having fastened a steel cable across the tracks which run between Munich and Nuremberg which damaged the front window of a train in October last year (aftermath pictured)

It came months before a similar attack when an overhead electrical line was sabotaged in December, but luckily nobody was injured in either incident.

But Vienna prosecutors said that only a technical error prevented casualties and added that writings in Arabic and an Islamic State flag near the crime scenes established a suspected 'terrorist' motive.

Marketa Puci, spokeswoman for the Municipal Court in Prague, said the court had received a custody request from prosecutors, on which it has to decide within 24 hours.

Austrian Interior Minister Herbert Kickl told the country's parliament that the two suspects 'formed a cell' together with another man suspected of involvement who was detained on Monday in Vienna.

Austrian Interior Minister Herbert Kickl (pictured at the UN this month) told the country's parliament that the two suspects 'formed a cell' together with another man suspected of involvement who was detained on Monday in Vienna

This man has admitted involvement in both incidents but denied any terrorist motive for the crimes, which would carry a maximum life-long prison sentence.

Austrian and German authorities worked together leading to Monday's arrest, according to criminal investigators in Germany's southern state of Bavaria.

Germany is on alert following several jihadist attacks in recent years - the most deadly committed in by 23-year-old Tunisian Anis Amri, who killed 12 people when he stole a truck and smashed it through a Berlin Christmas market in 2016.