Anything happening in Croker?

I live on the route to Croke Park and just then a blaze of sirens went down the road. Normally this signals either President McAleese heading to the park or indeed teams making their way to Croker before the game.


Pic from RTE

I looked out and saw six police vans racing down the road, I wonder if anything has happened, it sure looks like it, they were racing to something. So far there is nothing much on either the Irish Times and just a report on the RSF protest on RTE.