There ends our coverage of the Daca cessation announcement, the ripples from which will be felt for many months.

You can follow more on this story in the hours ahead at bbc.com/news

Image source, Getty Images

Microsoft President Brad Smith has published a blog post, external calling on Congress to prioritise passing legislation to replace Daca - even before addressing tax reform.

"We need to put the humanitarian needs of these 800,000 people on the legislative calendar before a tax bill," he wrote.

In the post, Smith also pledges to provide financial and legal support to the 39 Microsoft employees that are known to have benefited from Daca.

If the government seeks to deport any of them, Microsoft will seek to "directly intervene in any such case".

"In short, if Dreamers who are our employees are in court, we will be by their side."

Other tech giants, such as Facebook and Google, have also released statements criticising the government's decision.

New York police arrested 12 people at a sit-in protest over the Trump administration's decision to end the Daca programme, the NYPD confirmed to ABC News., external

Nine Daca recipients were among those arrested, according to pro-immigration group Movimento Cosecha.

Image source, Getty Images

Image source, Getty Images

Meanwhile, New York Mayor Bill de Blasio issued a defiant statement, offering legal services to Daca recipients and telling them: "We will fight for you".

Supporters of the president have come to his defence on social media, with many calling the programme "unconstitutional", and thanking Mr Trump for following through with his "America First" campaign promise.

Image source, Getty Images

Facebook CEO Mark Zuckerberg took to his own platform, external to express his disappointment, calling on Congress to pass a replacement plan.

Zuckerberg, who is one of the founders of the pro-immigration advocacy group Fwd.us, was one of the hundreds of business executives who signed a letter to Mr Trump urging him to keep Daca in place.

"This is a sad day for our country. The decision to end Daca is not just wrong. It is particularly cruel to offer young people the American Dream, encourage them to come out of the shadows and trust our government, and then punish them for it," he wrote on Tuesday.

Image source, Family handout

A 31-year-old man who benefited from the Daca programme was killed while attempting to rescue stranded residents of Houston, Texas from flooding.

Alonso Guillen had travelled nearly 100 miles from his home in Lufkin, Texas, with his two friends and a borrowed boat, but died after they hit a bridge while trying to rescue residents of an apartment complex.

Guillen, originally from Piedras Negras, Mexico, had arrived in the US as a teenager, making him temporarily protected from deportation under Daca.

His father is a permanent legal US resident, but his mother, who still lives in the Mexican border town, says she has been told by US officials that her application for a humanitarian visa to attend her son's funeral was turned down.

"When we are with God, there are no borders," Rita Ruiz de Guillen told the Houston Chronicle, external. "Man made borders on this earth."

The BBC's Anthony Zurcher is live at the Immigration and Customs Enforcement (ICE) headquarters in Washington, DC, where Daca supporters and recipients are rallying.

More than 30,000 individuals are estimated to lose their jobs every month and 700,000 total will be fired over the next two years as a result of cutting the Daca programme, according to a study by the Center for American Progress, external, a liberal think tank.

The centre has previously estimated, external that ending the Daca programme would also result in a US $460bn (£353bn) loss to the national GDP.

A crowd of protesters is growing outside Trump Tower in New York City, where some demonstrators have blocked traffic while staging a sit-in.

Images shared on social media showed police arresting protesters as law enforcement attempted to clear the busy Manhattan street.

Image source, Getty Images

The head of the Hispanic Chamber of Commerce, Javier Palomarez, has resigned from Trump's National Diversity Council.

Earlier on Tuesday, he told CNN, "I am out if he ends it".

"If he gets rid of DACA, he's showing that he is a liar," he said, referencing Mr Trump's previous promise to treat the recipients of the program with "heart".

"We're dealing with a president that gave his word, that promised that he would take care of these 800,000 young people," he told CNN.

The US Chamber of Commerce has also published a statement critical of the decision:

Students from multiple high schools in Denver, Colorado, have walked out of their classes in protest of Trump's decision.

School officials fear that schools may be forced to shut down if nearly 7,000 teenage students leave their classrooms, as they had threatened to do last week.

Approximately 17,000 Coloradans are recipients of work visas under the Daca programme.

Image source, Getty Images

Texas Attorney General Ken Paxton, who led a group of Republican states in a threat to challenge Daca, applauded the president's decision.

"Had former President Obama’s unilateral order on Daca been left intact, it would have set a dangerous precedent, " Mr Paxton said in a statement. He and several other state attorneys general said they would sue the Trump administration if the programme was not stopped by Tuesday.

President Trump has just released a statement justifying his decision to end the Daca programme.

"I do not favor punishing children, most of whom are now adults, for the actions of their parents," Mr Trump says, but insists that he is taking this action because "we are a nation of laws" and Mr Obama's order was "an end-run around Congress".

Washington must work with "heart and compassion" to help Daca recipients, but "must also have heart and compassion for unemployed, struggling, and forgotten Americans".

Trump, who will be meeting Republican lawmakers later today, adds "It is now time for Congress to act!"

California leads the country with 222,795 initial Daca recipients, according to the Pew Research Center, while Texas has more than 120,000 people protected under the programme.

More than three-quarters of all DACA recipients were born in Mexico.

House Speaker Paul Ryan has praised the president for his decision, which he says restores "the proper role of the executive and legislative branches".

Daca recipients "came to this country through no fault of their own, and for many of them it’s the only country they know", Mr Ryan adds, external, but says "their status is one of many immigration issues, such as border security and interior enforcement, which Congress has failed to adequately address over the years."

Ryan says he is looking to "find consensus on a permanent legislative solution".

Nancy Pelosi, the top ranking Democrat in the House, called the decision "a deeply shameful act of political cowardice".