Halo prevents serious incident in frightening F2 crash

The Dutch F2 Sprint race has been red-flagged following a frightening incident involving Campos teammates Ralph Boschung and Kush Maini.

Rainfall at Zandvoort has led to difficult conditions, with the race starting with a rolling start after following the Safety Car for the formation lap.

But with visibility poor on the run out of Turn 3 and through the high-speed kinks, Hitech driver Jak Crawford connected with Maini, sending the American into a spin.

As Maini checked up, teammate Boschung arrived on the scene and dug underneath the rear of the leading Campos, scooping him over the top of the Swiss driver.

Such was the height gained by Maini's car that damage was sustained to the marshal safety light board, used to assist marshals with flag indications to drivers during sessions.

The incident is the latest in an ever-increasing list of halo safety device interventions, with the structure appearing to save Boschung from serious harm as Maini's car rode up the Campos.

None of the three drivers appeared seriously injured after the incident, though Boschung - who was victorious on the opening weekend of the season - was seen hobbling in the immediate aftermath.

Extensive repairs were needed to the barriers involved in the incident.

Rain is forecast throughout the day, with wet conditions expected for F1 qualifying.