RIO DE JANEIRO (AP) — Host nation Brazil is off to an excellent start in women's handball, stunning reigning Olympic and world champion Norway 31-28 Saturday in the tournament's opening game.

Ana Paula Rodrigues had 12 goals for Brazil, which was the 2013 world champion but has never won an Olympic handball medal.

Brazil took the lead early in the first half and held on after Norway tied it 18-18 in the second half. As Future Arena filled with passionate home fans for the morning game, five straight goals and big saves from goalkeeper Mayssa Raquel Pessoa took Brazil's lead from 22-21 to 27-21.

"Every player from Brazil played very good — this is what I think. Played together," said Brazil's Alexandra do Nascimento, who scored twice. She said Brazil had learned to keep its composure after its loss to Norway in the 2012 Olympic quarterfinals. Brazil had led at halftime of that game.

"Now Brazil knows well this situation and if you make one mistake, this is one goal for Norway. Brazil today played very slow but intelligently," she said. Even though the Future Arena was not quite full, loud support from the fans was "very, very positive," Do Nascimento added.

The group stage runs through Aug. 14 and Norway is still likely to qualify for the knockout stages as one of the top four teams of the six-country Group A.

"We have to be more tough and the defense is the thing we have to be better on," Norway's Emilie Hegh Arntzen said. "(Rodrigues) was very good today and we know that she is an important player on the Brazilian team. It was tough to stop her today. If we meet them again, she won't be scoring so many goals."

The Netherlands, last year's world championship silver medalist, started with an 18-14 loss to France in the opening game of Group B.

Allison Pineau and Alexandra Lacrabere had five goals each for France, whose physical defensive play swung the crowd behind the Dutch players.

France led most of the game until the Dutch tied it 13-13. The French then went ahead for good behind five straight goals and strong saves by goalkeeper Laura Glauser.