Credit: Tim Whittard

A woman has captured a 'big cat' on camera in the British countryside - in what experts have hailed an 'incredible' sighting.

Becky Clarke spotted the mystery beast prowling through a field while out for a walk recently.

The video, recorded on Becky’s iPhone has been hailed as “incredible” by some experts.

Despite capturing some of the clearest evidence to date of the big cats existence in the wild of the UK, Becky said they almost missed their opportunity to record their sighting.