13 December 2012 Last updated at 07:30 ET

Four held after Aldworth helicopter pursuit

Four men have been arrested after a police helicopter pursuit in Berkshire.

Police said they were alerted by a member of the public in the early hours to three 4x4 vehicles driving at speed in Aldworth.

The vehicles were pursued along Ambury Road by the police helicopter until they came to a stop in a field.

Bright lights were shone at the helicopter and dogs from the 4x4s attacked livestock, killing a sheep and goat.

The four men, aged 17, 22, 22 and 23, have been arrested on suspicion of the theft of a motor vehicle, endangering the safety of an aircraft and criminal damage.