President Donald Trump has called for an expansion of his travel ban following an apparent terrorist attack in London that injured 22 people. British officials appeared to chide some of the president's comments while investigating the incident.
On Sept. 15, a small explosion created a fire aboard an Underground train in London's Parsons Green Tube station. Twenty-two people were treated for injuries that were reportedly not life-threatening. British authorities are investigating the explosion as a terrorist attack.
Trump took to social media to assert that British authorities had previous knowledge of the attack's perpetrator, even though a suspect had not yet been named, NBC News reports.
"Another attack in London by a loser terrorist," Trump tweeted out. "These are sick and demented people who were in the sights of Scotland Yard. Must be proactive!"
The president added: "The travel ban into the United States should be far larger, tougher and more specific -- but stupidly, that would not be politically correct!"
London’s Metropolitan Police Service released a statement that appeared to reference Trump’s tweets.
"This is a live investigation and we will provide further updates as it progresses," the statement read, according to The Wrap. "Any speculation is extremely unhelpful at this time."
British Prime Minister Theresa May signaled that she was displeased with Trump's social media assertion that British authorities had prior knowledge of any potential suspect in the explosion.
"I never think it's helpful for anybody to speculate on what is an ongoing investigation," May told reporters, according to The New York Times.
May's former chief of staff, Nick Timothy, took to social media to criticize Trump for his comment.
"True or not -- and I'm sure [Trump] doesn't know -- this is so unhelpful from leader of our ally and intelligence partner," Timothy tweeted out.
On Jan. 27, Trump signed an executive order that prohibited citizens of seven Muslim-majority countries from entering the U.S. The order was met with protests and legal challenges, with critics asserting that the travel restrictions constituted as religious discrimination, according to Fox News.
On July 19, the U.S. Supreme Court ruled that components of Trump's travel ban could still be enforced. Following several more court rulings, the travel ban was whittled down to only include citizens without any direct ties to the U.S. from Iran, Libya, Somalia, Sudan, Syria and Yemen. The ban is scheduled to expire by Sept. 24.
The Supreme Court is scheduled to hear arguments over whether Trump's executive order is constitutional on Oct.10. Because the travel ban will have expired by that date, the case could ultimately be a moot point. Professor Marty Lederman of Georgetown Law asserted that the case would likely resume based on the probability that the Trump administration would extend or renew the travel ban.
"It is likely that the president or Department of Homeland Security will issue a new order with new substantive limits or conditions that might include other nations," Lederman told CNN. "Alternatively, I can imagine the government coming in and saying, 'We are almost done, but we haven't gotten complete information so we need to extend this ban.'"