British Prime Minister Theresa May called on Sunday for a stronger response to Islamist extremism after three attackers rammed a hired van into pedestrians on London Bridge and stabbed others nearby, killing seven people and injuring 48. <br />The attack occurred five days before a parliamentary election and was the third to hit Britain in less than three months. May said Thursday's vote would go ahead. <br />"It is time to say enough is enough," the Conservative leader said outside her Downing Street office, where British flags flew at half-mast. <br />"We cannot and must not pretend that things can continue as they are," May said, calling for a beefed-up counter-terrorism strategy that could include longer jail sentences for some offenses and agreements to regulate cyberspace.
