CAMPAIGNERS against animal testing at Huntingdon Life Sciences demonstrated at a High Wycombe company on Friday.

Monsanto, a pharmaceutical company in Lane End Road, is a client of Huntingdon Life Sciences, Cambridgeshire.

Protesters, Stop Huntingdon Animal Cruelty (SHAC), managed to infiltrate the site where they gained entry onto the roof and dropped a banner in protest.

Spokesman for the group Dawn Gifford said: "We've overwhelming evidence of animal cruelty at Huntingdon. We're now targeting customers of Huntingdon."

The campaigners shouted at workers coming out of the office using a megaphone, while another protester banged a drum.

Police at the scene said protesters were acting peacefully and providing no obstruction to workers.

Campaigners have collected a petition of 300,000 signatures protesting about the animal experiments at Huntingdon and have handed it to the Home Office.

A spokesman for Huntingdon Life Sciences said: "It is sad that these campaigners, using intimidation and abuse to achieve their aims, have targeted employees of companies who carry out this life-saving research. What they should be doing is lobbying the government as it is legislation that insists that this important research continues to be carried out."

She denied there was cruelty and said their animals were checked by Home Office and EU officials. There was only an "isolated incident" of cruelty to a dog three years ago which demonstrators used for propaganda, she said.