A cyclist has been left seriously injured after being knocked down by a First Bus.

The 32-year-old is being treated for his injuries at Forth Valley Royal Hospital in Larbert.

The crash happened shortly before 8pm on Tuesday on the outskirts of Falkirk.

The A803 was shut by police for around six hours while enquiries were carried out.

Sergeant Ruth Aitchison said: "The cyclist has suffered serious injuries as a result of this collision and we are currently working to establish exactly what happened during this incident.

"Anyone who was on the A803 on Tuesday evening and believes they have information relevant to this investigation is asked to contact police immediately.

"We are particularly looking to speak to the passengers of the First Bus who left the scene prior to police arrival."

The First Bus is believed to have been travelling in the same direction as the cyclist.

A First spokesman said: "We can confirm that a First Midland Bluebird bus was in collision with a cyclist on the A803 on Tuesday evening.

"Our thoughts are with those affected by the incident.

"First Midland Bluebird is assisting police with their investigation into the circumstances."