Between 15,000 and 20,000 people were expected to climb what’s regarded as the country’s holiest mountain this weekend.

Met Eireann has issued a yellow weather alert for today until 3pm forecasting heavy rain.

Due to the adverse weather conditions on the County Mayo mountain the pilgrimage has been called off. Gardaí say the conditions are unsafe for climbers today.

A totals of 25 to 35 millimetres of rain is expected.

Every year, thousands of people climb the mountain in pilgrimage, some even barefooted. Mass is said at the top of the mountain.

The pilgrimage is traditionally held on the last Sunday in July.

Around 13 volunteer mountain rescue teams from all over the country are in the area were due to be involved in today’s operation.