A cyclist "out of his mind on drink and drugs" threatened a motorist with a knife and then confronted a woman out shopping, a judge heard on Friday.

Matthew Kyle Battenbough, aged 24, of Dol y Dderwen, Ystradgynlais, admitted two offences of having a bladed article in a public place.

Patrick Llewellyn, prosecuting, told Swansea Crown Court how Battenbough was seen riding around Ystradowen clutching a bottle of beer.

He shouted at motorist David Jones and threatened to "put this knife in you if you don't shove off."

About 40 minutes later he confronted Debbie Harris and shouted abuse at her.

Mr Llewellyn said police made contact with Battenbough via a friend and he went to a police station.

The barrister representing Battenbough, Frank Phillips, said he had a long history of substance abuse.

The judge, Mr Recorder Jonathan Furness, said Battenbough had been out of control and could not even remember the incidents.

"You were out of your mind on drink and drugs," he added.

Battenbough was jailed for 14 months and ordered to pay £180 in prosecution costs and a £100 surcharge.