Two teenagers have been arrested on suspicion of the murder of a 17-year-old boy at a park in Luton.

Firefighters suffered minor injuries and three fire engines were destroyed in a "significant" blaze at a large industrial unit in Essex which caused supplies of fertiliser to explode.

Six men have been arrested on suspicion of murder after a man was fatally stabbed in Clapham in the early hours of Saturday morning.

The UK is set for its fourth heatwave next week - and it may not be the last of the summer.