Federal Bureau of Investigation spokeswoman Michele Ernst said Thursday the agency is aware of reports of threatening messages against U.S. District Judge Derrick Watson and is prepared to help if necessary.
A federal judge who blocked President Donald Trump's ban on refugees and travelers from six Muslim-majority countries has received threatening messages since the ruling.
In its filing, the government points to a Maryland district court's decision to ban only one section of the 15-page travel ban, while highlighting Friday's ruling that the president's revised travel order appears to fall within the president's authority.
He said the new travel ban failed to pass legal muster.
The second ban looks similar to the first - it's aimed at keeping people from six Muslim-majority countries from entering the US for 90 days.
Federal Bureau of Investigation officials told Hawaii News Now that authorities are aware of the threats but declined to provide details on their nature or form. In response, the US Marshals Service increased their patrols and number of officers protecting the judges.
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In addition to the attacker and the stabbed police officer, two other people have died and 20 more were injured. As chaos broke out, the suspect left the vehicle and began attacking police officers with a knife.
The U.S. Marshals Service also said it would not give details.
Both bans suspended the USA refugee program for 120 days.
Watson ruled that the order signed by Trump early this month seeks to target Muslims and is akin to a Muslim ban the president proposed during the 2016 election campaign.
Trump called Watson's ruling an example of "unprecedented judicial overreach" and said his administration would appeal it to the U.S. Supreme Court.
Nearly 50 percent of Americans said they "strongly" or "somewhat" agreed with Trump's travel ban, while roughly 40 percent "strongly" or "somewhat" opposed it, according to a Reuters/Ipsos poll released in December 2016.