Saudi Arabia has barred more than 269,000 people without permits for the annual Hajj pilgrimage from entering Mecca this week, authorities said, as the world's largest annual gathering of people has officially begun.

Saudi Arabia has announced drastic changes for the 2025 Hajj pilgrimage that begins today, including new rules prohibiting children from accompanying pilgrims, and prioritizing pilgrims traveling for the first time.

A Saudi government spokesperson says more than 1.5 million foreign pilgrims are in the country for this year's Hajj.