Footage has shown the moment a funnel cloud formed over a US town.

The time-lapse video, taken in Beaver, Oklahoma, was filmed amid storm warnings in the area.

A funnel cloud is a cone-shaped cloud which extends towards the ground but does not touch it.

Once the system touches the ground it becomes a tornado. 

The town is around 70km from Perryton in Texas which was hit by a deadly tornado on Thursday.

At least four were killed after the twister left a mile-long trail of destruction through the town of around 8,000 people.

Emergency response teams remain in the area searching for survivors.

For more videos from The Telegraph, subscribe to our YouTube channel

ncG1vNJzZmivp6x7tbHLnp6rmaCde6S7ja6iaK%2Bfp7mlec2erqxnYmV%2FdHuPb2ZqcV%2BkuK2tx6ikmmWkmsWiv4ytpqumkZm8bsHSmmSsrJ%2BnurR5z56lp7GkpLtw