Angry clashes have broken out between protesters and police outside the Confederations Cup semi-final match in Belo Horizonte, Brazil.
"The protesters started this when they tried to break through our outer barrier," police captain Flavio Almeida told the Associated Press. "We had no choice but to respond."
More top news
State Department spokeswoman Heather Nauert said Pence "was ready to take this opportunity."
Opposition activists said government forces have brought in more reinforcements in recent days.
Mostly dry, calm and quiet