Armed police have been patrolling the area of Luton, where a teenage boy was shot at the weekend.
The 16-year-old was gunned down early on Saturday morning. He remains in a serious condition.
A one-thousand-pound reward is being offered for information.
More top news
After a night of thunderstorms across the East, this afternoon and this evening will stay calm, warm and sunny.
Two schoolboys have sent their favourite teddy bear up into the atmosphere.
A British family believed to have fled to Syria have joined Islamic State, according to a statement said to be released on their behalf.