Chris Kunitz scored in overtime to shift a topsy-turvy series between the Penguins and New York Islanders.

Kunitz scored on a power play with 11:16 left in overtime to give the Penguins a 5-4 victory in Game 3 of an Eastern Conference quarterfinal playoff series.

Fans at Nassau Coliseum threw bottles onto the ice after Kunitz scored.

Sidney Crosby, who had three points, set up the winner.

The Penguins lead the best-of-seven Stanley Cup playoff series, 2-1. Game 4 is Tuesday night.

The Penguins trailed, 2-0, early in Game 3, but they carried 3-2 lead into the second period and 4-2 lead into the third period.

Islanders center John Tavares' first playoff goal tied the score near the midpoint of the final period.

A brilliant individual-effort goal by Islanders right winger Kyle Okposo — shorthanded — made it a one-goal game early in the third period. Okposo did well to stay onside before besting Penguins goalie Marc-Andre Fleury on a wristshot.

Center Frans Nielsen's pass broke Okposo, who was chased into the offensive zone by Penguins defenseman Matt Niskanen.

Okposo's shorthanded goal was the Islanders' first in the playoffs since Tom Fitzgerald, now assistant to the general manager with the Penguins, scored two in the 1993 Patrick Division final, which the twice-defending champion Penguins lost in seven games.