YOUNGSTERS who are potentially putting their lives at risk in Woodbridge have been warned action could be taken if they continue to trespass on buildings.

YOUNGSTERS who are potentially putting their lives at risk in Woodbridge have been warned action could be taken if they continue to trespass on buildings.

Suffolk police, Network Rail, and building owners in Woodbridge have been studying footage shown on the internet site YouTube, in which teenagers engage in ''free-running''.

During the four-minute video they are seen running at walls, scaling them without props, and going across rooftops. Some of the footage is taken in an area around the town's railway station, bridge and Whistle Stop Café.

The film was taken last summer and it is unclear whether the activity, also known as Parkour, has continued since then.

Police officers have warned about the possible dangers and Network Rail has looked at the video to see what impact there could be on the railway infrastructure.

A Network Rail spokesperson said: ''We take trespassing on the railway extremely seriously and we are looking into the YouTube recording.

''Certainly, roofs and platform canopies are not places to be running about on, and we would be concerned that this could cause damage to the station building.''