BUENOS AIRES - The 3rd Summer Youth Olympic Games kicked off in Argentina's capital in an open street party on Saturday.

It's the first time an Olympic opening ceremony has been held in the streets of a city and free for the general public, away from a traditional stadium.

The focal point is the Buenos Aires Obelisk, in the middle of the city's 9th of July Avenue (Avenida 9 de Julio).

Tens of thousands of people filled the streets, while the athletes and the Olympic family were among the audience. The young Thai soccer team Wild Boars who were rescued from Tham Luang cave in Thailand were also invited to the opening ceremony.