By Craig Bohnert | Aug. 11, 2016, 1:03 p.m. (ET)
Melissa Seidemann passes over Anna Espar Llaquet of Spain in the preliminary round of women's water polo at the Rio 2016 Olympic Games at the Maria Lenk Aquatics Centre on Aug. 9, 2016 in Rio de Janeiro.

The U.S. women's water polo team remains undefeated in its campaign to defend its Olympic title, downing China 12-4 Thursday afternoon at Maria Lenk Aquatics Centre in Barra's Olympic Park.

Team captain Maggie Steffens put the U.S. on top early with a goal 28 seconds into the match, the first of three unanswered goals that led to a 4-1 advantage at the end of the first quarter, which was built to 7-1 by halftime.

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Steffens led the team with four goals in as many attempts. Maddie Musselman added three goals in four tries as the U.S. shot 52.4 percent (11-21) for the game.

The U.S. will conclude group play at 1 p.m. on Saturday, Aug. 13, facing Hungary to determine which team will be the top seed out of Group B advancing to the knockout stage.