Police are warning motorists after rope was tied across a road.
Dunmow officers have received reports of people tying a rope across the road at the zebra crossing at The Causeway near to the junction of The Maltings.
It has been happening overnight and has caused several motorists to take avoiding action.
Sgt James Ireland said: "It is fortunate that to date this wreckless and mindless behaviour has not caused serious injury to someone or worse.
"Motorists using this road at night are reminded to be vigilant, especially those on a motorcycle. "These people are potentially putting lives at risk and this has to stop.”
Anyone with information is asked to contact police on 101.
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