President Trump has just posted a video announcing the travel ban on his social media platform, Truth Social.

He begins by saying the recent attack in Colorado illustrates the "extreme dangers" of foreign nationals entering the US without being "properly vetted".

The president also refers to those coming as temporary visitors who overstay their visas.

"We don't want 'em," Trump says in the video.

A man in Colorado has been accused in a firebombing attack on a group of demonstrators who gathered on Sunday in support of Israeli hostages. The man and his family are Egyptian nationals.

Egypt is not on the list of countries targeted under Trump's order.

The proclamation signed by Trump also partially restricts travel to the US by nationals from seven other countries: Burundi, Cuba, Laos, Sierra Leone, Togo, Turkmenistan, and Venezuela.

Image source, Getty Images

Early in Donald Trump's first term, he announced a ban on travel from seven Muslim-majority countries from entering the US.

It followed a campaign promise he made in 2015 for "a total and complete shutdown of Muslims entering the United States until our country's representatives can figure out what is going on".

Image source, Getty Images

Thousands of tourists, migrants, business visitors and US green card holders were immediately thrown into limbo at airports around the world, as airlines and global immigration authorities tried to work out the details. Many were turned away mid trip or prevented from boarding flights bound for the US.

The so-called "travel ban" sparked nearly instant pushback, with protesters in cities like New York and Washington DC taking to the streets. Demonstrators for and against the ban also gathered at airports for protests.

Image source, Getty Images

Court rulings temporarily blocked the policy, and the administration revised the order multiple times, variously narrowing or widening its scope.

A 5-4 decision from the Supreme Court in 2018 allowed the ban to continue, overruling lower courts that found it to be unconstitutional.

Trump garnered a major win and it was allowed to take full effect.

At the beginning of the White House statement detailing the new travel ban, Trump talks about the ban that he enforced during his first term in 2017. It was often referred to as the "Muslim ban".

The President's plan to ban people from certain countries coming into the US faced various legal challenges and was amended several times, but the Supreme Court ultimately ruled it could go into full effect.

The White House first placed travel restrictions on Iran, Libya, Syria, Yemen and Somalia. It was then extended to include people from North Korea, Venezuela and Chad.

Today, Trump says the ban "successfully prevented national security threats from reaching our borders".

White House spokeswoman Abigail Jackson says "President Trump is fulfilling his promise to protect Americans from dangerous foreign actors that want to come to our country and cause us harm.

"These common sense restrictions are country-specific and include places that lack proper vetting, exhibit high visa overstay rates, or fail to share identity and threat information," the spokeswoman told the BBC's US partner CBS.

"President Trump will always act in the best of interest of the American people and their safety," she says.

Donald Trump has signed a proclamation banning travel to the US from nationals of 12 countries, citing national security risks, according to the White House.

The countries are Afghanistan, Myanmar, Chad, Congo-Brazzaville, Equatorial Guinea, Eritrea, Haiti, Iran, Libya, Somalia, Sudan, and Yemen.

The proclamation goes into effect on Monday, 9 June.

This is a developing story. Stick with us as we bring you more info.