08/04/2012 06:40 EDT | Updated 10/04/2012 05:12 EDT

Montenegro beats Romania to book spot in quarterfinals of men's Olympic water polo

LONDON - Aleksandar Ivovic scored three goals as Montenegro beat Romania 12-8 to advance to the quarterfinals of men's water polo at the London Olympics.

The win Saturday gives Montenegro, the 2012 European championship runners-up, five points from four Group B matches.

Nicolae Diaconu scored three goals for Romania, which has two points from four matches and only slim hopes at this point of advancing to the quarterfinals.

Montenegro plays Britain in its final preliminary stage game Monday, while Romania closes against gold medal-favourite Serbia.

The men's field is broken into two groups of six teams. The top four from each group advance to the quarterfinals.