Protesters jostled with police last night as they tried to disrupt a National Party fundraising event in Dunedin.
Trans Pacific Partnership opponents hoped Prime Minister John Key would enter through the Savoy restaurant's public entrance, but it is understood he used another door.
Mr Key had earlier been guest of honour at the Otago Daily Times Class Act event at the Dunedin Public Art Gallery in the Octagon.
The protest started outside the art gallery, before moving around the corner to the Savoy, in Princes St..
Up to 100 protesters attended, split between the venue's Moray Pl and Princes St entrances.
A few policemen's hats were knocked to the ground by protesters as they jostled and shoved at the Princes St entrance.
Protesters linked arms in an attempt to keep National Party supporters out of the restaurant.