The Paralympics Committee says up to 10 countries may not be able to send athletes as planned. The committee is working with the Brazilian government to secure more money before the games next month.
Jamaican sprinter Usain Bolt won gold again at Rio's Summer Olympics in the 200-meter race. And, Ashton Eaton became one of the few men in Olympic history to repeat as a decathlon champion.
Announcing that two swimmers have left a Rio airport after speaking to police, U.S. Olympic Committee CEO Scott Blackmun is apologizing for how Ryan Lochte and three other swimmers behaved.
Coming into this event, Usain Bolt held both the world record, at 19.19 seconds, and the Olympic record, at 19.30. He was the only runner to clock a time of under 20 seconds Thursday.
Eaton, 28, became one of the few men in Olympic history to repeat as a decathlon champion. His victory came just days after his wife, Brianne, won the bronze in the women's heptathlon.
It was a team that ran alone: The women of the U.S. 4x100-meter relay team raced by themselves under the lights of Rio's Olympic Stadium on Thursday, going against the clock for a shot at the final.