Joel Rodrigues, AP
International Olympic Committee (IOC) President Thomas Bach, left, speaks during a news conference next to the President of Brazil's Olympic Committee Carlos Arthur Nuzman after a meeting with Brazil's President Dilma Rousseff at Planalto Palace in Brasilia, Brazil, Tuesday, Jan. 21, 2014. The city of Rio de Janeiro will host the Olympics in 2016. (AP Photo/Joel Rodrigues)

BRASILIA, Brazil — IOC President Thomas Bach has met with Brazilian President Dilma Rousseff, saying he has "full confidence" in the preparations for the 2016 Olympics in Rio de Janeiro.

Bach says "time was key" to make the games a success.

Rio's preparations have been plagued by delays, a late operating budget and concerns about water pollution in Olympic venues. IOC members have talked openly about their worries and have constantly urged Rio organizers to speed up.

Bach is making his first visit to Brazil since being elected president of the International Olympic Committee in September.

The German was upbeat after meeting with Rousseff in Brasilia and said the Olympics would make Rio an even better city.

Bach is to meet Wednesday in Rio with organizers and government officials.