The situation at the Manston migration centre in Kent is a “breach of humane conditions”, according to the Tory MP for the area.

Conservative backbencher Sir Roger Gale told Sky News that the facility is holding 4,000 people when it is only designed to hold 1,000, saying “that is wholly unacceptable”.

The MP for North Thanet said he visited the site on Thursday and things are “much worse” than the week before “when there were two and a half thousand people”.

He said: “These circumstances, I believe now were a problem made in the Home Office.”

Sir Roger said that until around five weeks ago, the system was “working as it was intended”, but it was “now broken and it’s got to be mended fast”.

He called for an end to “dog-whistle” politics and said actionable solutions were needed instead.

Asked if Suella Braverman was the right person to be leading the Home Office, Sir Roger said he was not going to “point fingers”, but that “whoever is responsible for the current situation, either the previous home secretary (Priti Patel) or this one, has to be held to account”.

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“A bad decision has been taken and this has led to a breach of humane conditions.”

Sir Roger told Radio 4 he has put forward an urgent question to discuss the situation in the House of Commons.

Last week, a Home Affairs Select Committee heard conditions at Manston were “wretched”, with overcrowding, outbreaks of diseases and people being held for weeks longer than the 24 hours intended – some as long as a month.

Questions have been raised about the home secretary’s judgement, following a report in The Times which claimed she blocked the transfer of asylum seekers to new hotels and ignored legal advice that the government was illegally detaining people at Manston.

Asked about the reports, environment minister Mark Spencer told Sky News Ms Braverman blocked migrants from being moved in a bid to “speed up” their applications.

He added that the way to cut down on migrants crossing the channel was to “break the model” of people traffickers.

However he did not rule out new processing centres.

Sir Roger said he believed this was the “immediate solution”, saying student accommodation or former MOD accommodation could also be used to free up capacity at Manston.

However he stressed any new sites “must be used properly”.

He said Manston was meant to be turning people around in 24 hours but “as a result of Home Office policy, that is now broken”.

Labour has also called for Ms Braverman to take action and “make decisions” on migration to solve the current crisis.

Shadow home secretary Yvette Cooper said a “failure to make decisions” within the government had left people waiting for lengthy periods in supposedly temporary accommodation.

Labour has been calling for Ms Braverman to make a statement on the migrant situation. Ms Cooper claimed the home secretary was not doing so as there were still questions over her “own security breaches” – after her initial resignation for sending government information via a private email.

‘Entirely fresh approach needed’

Pressure is piling on the Home Office as a record of number of people continue to cross the channel, with 1,000 migrants arriving on Sunday.

The Home Office is already grappling with a 100,000 backlog in processing asylum applications, with 96% of those from last year still outstanding.

Officials have noted a surge in illegal migration from Albania, which has been blamed on criminal gangs having a “foothold” in northern France.

On Sunday, refugee charities wrote to the Home Secretary demanding the government create more safe routes to the UK as a solution to stopping the dangerous small boat crossings.

Meanwhile Kevin Saunders, former chief immigration officer for the UK Border Force, said the system is “broken” and that he would put asylum seekers on a cruise liner.

And Conservative MP for Dover, Natalie Elphicke, said an “entirely fresh approach” is needed to tackle the “out of control” crossings in small boats.

She told TalkTV: “In the most immediate term that does mean stopping the boats leaving France. There are obviously a whole range of other measures, but at the moment a number of those are held up in the courts, a number of those are subject to more legal changes to go through Parliament, so all efforts have to go on stopping those boats and tackling the issue head on.”