BRITAIN’S terror alert has been raised to the highest level in four years after a series of attacks on the streets on London.

"The recent increase in terrorist threats is driven by a ​rise in Islamist and ​extreme right-wing terrorist threats in the ‌UK," ⁠the U.S. embassy said in a security alert on Friday.

Chris Phillips, the former head of the National Counter Terrorism Security Office, said: "Clearly a succession of attacks on the Jewish community have had an impact on the decision makers. What we’ve ...