A number of Parkrun events have been cancelled following bad weather and reports of some courses being unsafe.
On Friday, some people living in the East of England, including Bedfordshire, Buckinghamshire and Northamptonshire, woke up to wintry conditions.
The Met Office also issued a yellow snow and ice weather warning for Norfolk, which was in force between 17:00 GMT on Friday until 23:59 on Saturday.
Run by volunteers, Parkrun holds 1,385 events across the United Kingdom each weekend and encourages people to complete 5k courses by walking, running or jogging. Due to the conditions, some organisers said events could not go ahead.
- Aylesbury in Buckinghamshire
- Beccles Quay in Suffolk
- Daventry in Northamptonshire
- Downham Market Academy in Norfolk
- Ferry Meadows in Peterborough
- Great Yarmouth North Beach in Norfolk
- Kettering in Northamptonshire
- Luton Wardown in Bedfordshire
- Pocket Parkrun in St Neots, Cambridgeshire
- Salcey Forest in Northamptonshire
- Wycombe Rye in Buckinghamshire
A full list of cancelled events can be found here.
A number of Parkruns due to take place on Sunday have also been cancelled.
Organisers of the Great Yarmouth North Beach Parkrun said they had made the “difficult decision” to cancel the event due to “predicted extreme high tide and our course being partially under the sea”.
In Beccles, Suffolk, organisers said the course had been flooded by the River Waveney.
It said: “The Waveney has done its thing again and invaded our main courses like the big bully that it is. At the same time, it thumbed its nose at us and flooded the winter course, and the access to it.
“The high level of water is due to continue for a few days, and, added to that, we have the chance of ice in the morning too. This is disappointing, but the safety of everyone involved in the Parkrun experience is paramount.”
The news came after a number of Boxing Day and New Year’s Day dips were cancelled due to high winds and dangerous sea conditions in Sheringham, Cromer and Mundesley in Norfolk, and a number of swims were rescheduled.