Officials in London installed barriers on bridges to protect pedestrians from future terror attacks days after a van mowed down pedestrians on London Bridge.  The barriers, made of concrete and metal, were installed at Lambeth Bridge, London Bridge, Waterloo Bridge and Westminster Bridge.  Transport for London said the bridges closed during installation early Monday but most have reopened.

On Saturday, at least seven people were killed by three masked men who drove a white van into pedestrians on the London Bridge, then leaped out and stabbed several people at Borough Market's nearby bars and restaurants.  The suspects were shot dead.  The Islamic State took responsibility for the attack.  On March 22, five people were killed by after 52-year-old British-born Khalid Masood drove a car into pedestrians on Westminster Bridge, then fatally stabbed a police officer. Masood was shot dead.

Meanwhile, politicians resumed campaigning Monday ahead of Britain's general election on Thursday following a suspension in honor of the victims.

Read more: The Guardian