London police arrest 45-year-old suspect following a knife attack that injured two Jewish men. Authorities are treating the incident as an act of terrorism.

UK counter-terrorism officials report an elevated threat level directed at Jewish and Israeli individuals and institutions across the country. The assessment follows a period of gradually rising terrorist threat levels in the United Kingdom.

The UK's head of counter-terrorism policing reports an elevated terrorist threat level specifically targeting Jewish and Israeli individuals and institutions within the country.

The Joint Terrorism Analysis Centre has raised the national threat level to severe following an attack in Golders Green.

The Joint Terrorism Analysis Centre has raised the national threat level to severe following an attack in Golders Green.

UK raises terror threat level to 'severe' after London attack. The government cited the incident as reason for the heightened alert.

The UK government raised the national threat level from substantial to severe after an attack in London.

UK Interior Minister Mahmood says an increased threat level means a terrorist attack is considered highly likely.

UK Interior Minister Mahmood states that an increased threat level indicates a terrorist attack is considered highly likely.