by Associated Press | September 15, 2017
Following is a timeline detailing President Donald Trump's reactions to the London subway incident (all times local):
10 a.m., Friday
President Donald Trump is calling the explosion in London a "terrible thing."
Trump told reporters Friday morning that he had been briefed on the explosion on a London train that left 22 people injured but no one seriously hurt. Police said the explosion was a terrorist attack, the fifth in Britain this year.
The president said he planned to call British Prime Minister Theresa May "right now." Asked about his tweet calling for a tougher travel ban, Trump said "we have to be tougher and we have to be smarter."
7:25 a.m.
President Donald Trump says the United States must be "proactive" and "nasty" against the Islamic State group.
On Twitter Friday Trump said: "We have made more progress in the last nine months against ISIS than the Obama Administration has made in 8 years." He added: "Must be proactive & nasty!"
Trump was reacting to news that a homemade bomb exploded on a packed London subway train during rush hour on Friday. The incident left 18 people injured but no one seriously hurt. Police said the explosion was a terrorist attack, the fifth in Britain this year.
Trump is using the incident to defend his travel ban against six Muslim-majority countries. As a candidate, Trump often pledged to "bomb the hell out of ISIS" and vowed to enact a Muslim ban.
7:10 a.m.

President Donald Trump is defending his travel ban. He says it should be "tougher and more specific."
On Twitter today, Trump said: "The travel ban into the United States should be far larger, tougher and more specific - but stupidly, that would not be politically correct!" Trump made the comment after tweeting about a reported explosion and fire on a subway train in London that police said was a terrorist incident.
The ban affects travelers from six mostly Muslim nations and refugees anywhere in the world.
7:05 a.m.
President Donald Trump called a fire at a London subway station another attack "by a loser terrorist" and suggested police there may have missed an opportunity to prevent it.  He also said the government should cut off Internet access to extremist groups.
Trump tweeted Friday: "Another attack in London by a loser terrorist. These are sick and demented people who were in the sights of Scotland Yard. Must be proactive!" He later added: "Loser terrorists must be dealt with in a much tougher manner. The Internet is their main recruitment tool which we must cut off & use better!
Scotland Yard declined to comment on Trump's tweets.