Usain Bolt welcomes twins - Thunder and Saint Leo

MARTIN BUREAU / AFP

Olympic great sprinter Usain Bolt and Kasi Bennett have announced the arrival of their twin boys, with a special Father's Day post on Instagram.

Sharing a family photograph, the 34-year-old revealed that they are named Saint Leo and Thunder.

Without revealing any details on when they were born, he completed the announcement with a lightning bolt emoji next to each of his children's names.

Bolt and Bennett have a one-year-old daughter Olympia Lightning.

"You are the rock of this family and the greatest daddy to our little ones," Bennett wrote on her Instagram announcement.

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