The upcoming Rolling Stones' performance in Serbia has caused a stir with animal rights activists.

The band is due to play at the Belgrade Hippodrome this coming July, which is next to a horse racetrack. Stable owners have said that in light of the concert, the 300 horses at the track may have to be sedated to prevent them from panicking.

But the proposal has caused concern from Serbia's biggest animal rights group, Orca.

They have said that an alternative venue could and should be found to prevent causing the horses distress.

A spokesman for the organisation told the BBC: "Surely our big city has enough open spaces where even 150,000 people can fit in.

"We think the Hippodrome should be left to horses."