The Prime Minister has been quizzed on if she still intends to "roll out the red carpet" for Donald Trump amid his administration's policy of separating families at the US border.

SNP Westminster leader Ian Blackford cited "deeply distressing audio and images" emerging from US detention centres as he pressed Theresa May at Prime Minister's Questions.

Pictures and footage have revealed child migrants being kept in cages in the US near its southern border, reportedly including infants as young as 18 months.

The Trump administration's "zero-tolerance" immigration policy has led to the separation of more than 2300 children from their parents in just five weeks.

May called the policy "wrong" and "not the United Kingdom's approach", insisting the US president's visit to the UK on July 13 was an opportunity to discuss the issue.

She added she had ended the routine detention of families with children shortly after she became home secretary in 2010.

However, she did not mention that two years later she introduced a policy barring the children and families of lower salaried immigrants from entering the UK, a move which caused many young children to be separated from their families.

Blackford was speaking a week on from being told to leave the House of Commons in heated exchanges at PMQs over the Brexit Bill, sparking a walkout by SNP MPs.

Devolution amendments to the Bill, long dubbed a "power grab" by critics, were passed with less than 20 minutes of debate last Tuesday despite Holyrood refusing to give its consent.

Returning to PMQs on Wednesday, Blackford said: "Many of us in this House will be aware of the deeply distressing audio and images of children separated from their parents in US detention centres.

"Infants as young as 18 months are being caged like animals. Babies of eight months are being left isolated in rooms.

"And last night, the former head of US immigration and customs enforcement said he expects hundreds of these children never to be reunited with their parents.

"Lost in the system. Orphaned by the US Government."

He asked: "Is the Prime Minister still intending to roll out the red carpet for Donald Trump?"

May said: "We have a special, enduring and long-standing relationship with the United States and I think it is right there will be a range of issues that I'll be discussing with President Trump - a range of issues about our shared interests.

"I think it's important that we make sure that when we see the President of the United States here in the United Kingdom, we're able to have those discussions that means that when we disagree with what they're doing, we say so."