Hundreds of people gathered in Northern Ireland on Sunday to mark 50 years since Bloody Sunday, one of the deadliest days in the conflict known as The Troubles.

Thirteen people were killed and 15 others wounded when British soldiers fired on civil rights protesters on Jan. 30, 1972, in the city of Derry, also known as Londonderry.

The relatives of those killed and injured half a century ago took part in a remembrance walk on Sunday, retracing the steps of the original march. Crowds gathered at the Bloody Sunday Monument, where political leaders, including Irish Premier Micheál Martin, laid wreaths in