Pottery was found in situ in the Mesolithic layers of the site Lepenski Vir in the Iron Gates gorges of the Danube. This discovery raises issues about Meso-Neolithic contact in the second half of the 7th millennium cal BC. Here discussion of the evidence from Lepenski Vir and Padina explores the Neolithic groups which made contact, opening the debate on the process of neolithization in the Balkans and southeast Europe in general.