Romelu Lukaku of Belgium and Matt Besler of the United States compete for the ball during the 2014 FIFA World Cup Brazil Round of 16 match between Belgium and the United States at Arena Fonte Nova on July 1, 2014 in Salvador, Brazil. [Photo/CFP]

Romelu Lukaku scored a second goal for Belgium in extra time on Tuesday, giving the team a 2-0 lead over the United States in the second round of the World Cup.

Lukaku took a pass from Kevin De Bruyne and beat U.S. goalkeeper Tim Howard in the 105th minute.

A few minutes earlier, De Bruyne scored following a pass from Lukaku, who had come on a substitute just before extra time started.

The match went to extra time after the teams went scoreless through 90 minutes of regulation play. There are two 15-minute halves in extra time. If the match is still even, it will be decided by a penalty shootout.

The game was briefly delayed when a man ran onto the field in the 16th minute.