Donald Trump has said he thinks it would be "fine" to try US citizens accused of terrorism in military tribunals in Guantanamo Bay rather than the civilian judicial system. A shift from the current policy would require action from Congress as it is illegal to try US citizens in military courts under federal law.

"I know that they want to try them in our regular court systems, and I don't like that at all. I don't like that at all," the Republican presidential nominee told the Miami Herald in a wide-ranging interview. "I would say they could be tried there, that would be fine."

The Obama administration initially considered trying five alleged conspirators in the 9/11 attacks on the World Trade Center in a New York City federal court as opposed to Guantanamo, where they are being held. The idea was met with vehement resistance, leading the White House to opt for prosecution by military tribunal.

Trump added: "I want to make sure that if we have radical Islamic terrorists, we have a very safe place to keep them," accusing Obama of "allowing people to get out that are terrible people." Trump has previously said he would "load it [Guantanamo] up with bad dudes."

During the interview, Trump also expressed cynicism over climate change, having called it a "hoax" in the past. "I'm not a big believer in man-made climate change," Trump said in Miami Beach, which has spent millions of dollars to deal with rising sea levels, according to the Washington Post. "There could be some impact, but I don't believe it's a devastating impact."

The GOP nominee said businesses are negatively impacted as a result of climate policy in the US. Trump said: "The problem we have is our businesses are suffering. Our businesses are unable to compete in this country because other countries aren't being forced to do what our businesses are being forced to do, and it makes us uncompetitive."