Watch: Griggs promises 'more to come' after breaking course record

Nick Griggs says he is not satisfied with his time of 14 minutes and 12 seconds at the Queen's 5km despite setting a course record.

The Tyrone teenager has promised more to come as he continued his red-hot form having set a new European U20 indoor mile record in March.

Read more: Griggs breaks course record to win Queen's 5km road race