A performer plays with fire at the 2019 Kensington Market Winter Solstice Festival in Toronto, Canada, Dec. 21, 2019. This annual event was held here to celebrate the longest night of the year on Saturday with thousands of people. (Photos: Xinhua)

Performers play with fire at the 2019 Kensington Market Winter Solstice Festival in Toronto, Canada, Dec. 21, 2019. This annual event was held here to celebrate the longest night of the year on Saturday with thousands of people.

A performer plays with fire at the 2019 Kensington Market Winter Solstice Festival in Toronto, Canada, Dec. 21, 2019. This annual event was held here to celebrate the longest night of the year on Saturday with thousands of people.

A performer plays with fire at the 2019 Kensington Market Winter Solstice Festival in Toronto, Canada, Dec. 21, 2019. This annual event was held here to celebrate the longest night of the year on Saturday with thousands of people.

A performer plays with fire at the 2019 Kensington Market Winter Solstice Festival in Toronto, Canada, Dec. 21, 2019. This annual event was held here to celebrate the longest night of the year on Saturday with thousands of people.