05:05AM, Wednesday 05 February 2014
Delays are affecting traffic travelling westbound on the M4 between junctions 7 and 8/9 near Maidenhead.
A police spokeswoman said there was a collision between vehicles, but no one was hurt.
The damaged vehicles have been moved to the hard shoulder but traffic is still moving slowly.
Liquid Leisure Windsor has issued a statement following the death of an 11-year-old girl at the water park on Saturday afternoon.