A CCTV image has been released of a man police would like to speak to about a cycle rage incident in Corby.
The incident happened at about 5pm on Friday, April 10, but the details have only just been released.
The cyclist had ridden into Elizabeth Street from Everest Lane and was travelling towards Cottingham Road, when a blue Peugeot 206 overtook the cyclist and braked sharply.
The driver got out and threatened the cyclist, who rode away into West Glebe Park.
The Peugeot driver followed the cyclist into the park, threatened him again and then threw a large branch at him, injuring his leg.
The suspect is described as a white man, about 5ft 6in, in his late 30s, with broad shoulders and a dark, bushy beard.
He was wearing dark trousers and a white T-shirt with a dark patch or chest pocket on the front.
He spoke with a local accent.
Witnesses, or anyone who recognises the man pictured, are asked to call Northamptonshire Police on 101.
Alternatively, they can call the independent charity Crimestoppers anonymously on 0800 555 111.