A report was received at 3.43pm about a single decker coach carrying a number of school children being involved in the incident near the Duke of Cambridge pub. Road closures are being put in place. There are no further details currently.
More top news
Essex Police say that they can't comment on Martin Goldberg's death, but there were indications of an attempt to destroy evidence.
Police say indecent images of children have been found at the home of a deputy head teacher, who was recently found dead.
Essex Police say pictures of boys undressing have been discovered in the home of a teacher who's been found dead.