AN AIRPORT bus packed with tourists in Germany has rammed into a traffic jam – injuring at least 21 people.

One person was taken to hospital in critical condition after the horror smash on Autobahn 59 near Sankt Augustin.

The airport motorway between the Bonn-Nordost and Sankt Augustin-West interchanges was completely sealed off following the crash.

At least one person had to be rescued from their destroyed vehicle by firefighters.

The individual fighting for their life was flown to hospital with the Christoph Rheinland rescue helicopter.

The rescue chopper was seen dramatically landing on the highway according to local media.

Reports say the bus, which was on line 60 connecting Bonn and Cologne/Bonn Airport, drove into a pile of vehicles shortly after 2:30pm.

The bus crashed into traffic near Am Bahnhof street in Sankt Augustin-Meindorf after it failed to brake.

The shocking smash caused five other vehicles to collide.

The motorway authority said at least 21 people suffered both serious and less serious injuries.

They confirmed seven of the 21 had serious injuries.

It is unclear why exactly the bus failed to stop before colliding with the traffic jam.

The horrific crash unfolded on Sunday afternoon.

It comes after another bus accident in Germany where at least two people were killed on a busy German motorway.

Four others were seriously injured in the fatal smash after a coach carrying 14 passengers on a cross country trip overturned and was left in a wreck on its side.

The deadly accident took place on the A11 motorway between the Uckermark triangle and the Schmölln junction in January.

A 29-year-old woman and a 48-year-old man were confirmed as the two deaths, police spokeswoman Beate Kardels said.

The bus was coming off of the motorway and trying to drive into a car park when it overturned, Kardels added.

Pictures showed the Flixbus on its side next to an icy road.

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