Metropolitan Police Service
Six people have died as a result of knife attacks in the last week.
But Sajid Javid insists "we have to listen" to police chiefs' call for extra cash.
It comes after packages arrived at London’s Waterloo railway station and offices at Heathrow and London City airports on Tuesday.
Teen was with friends near a children’s playground when she was knifed in the back.
The teen was held in a shop after workers became suspicious.
He is alleged to have screamed: "When you vote you get what you vote for."
She will appear in court on Monday.
Labour leader is not thought to be hurt.
Another man who was shot and stabbed has survived, police said.
No arrests have been made, according to the Metropolitan Police.