A government threat to deploy "maritime assets" to the Channel to deter migrants has been dismissed as "completely potty".
Sources have told Sky News the government's response may be scaled up after a record 235 people in 17 boats were intercepted trying to land on the Kent coast on Thursday.
130 people in 13 boats were also intercepted on Friday.
The 'assets' involved would reportedly include Royal Navy ships. Government sources downplayed this link this morning, but the Home Secretary's spokesman confirmed that it was an option being considered.
A Ministry of Defence source dismissed the use of navy personnel, telling the PA news agency it would be "completely potty" and the idea had "more holes in it than a slice of Swiss cheese".
They said it would be "impractical and unnecessary" adding: "It is a completely inappropriate and disproportionate approach to take.
"We don't resort to deploying armed force to deal with political failings.
"It's beyond absurd to think that we should be deploying multi-million pound ships and elite soldiers to deal with desperate people barely staying afloat on rubber dinghies in the Channel."
Chancellor Rishi Sunak told Sky News he is "frustrated" about the situation.
"We all want to see these crossings reduced," Mr Sunak said.
"We remain committed to making sure that happens."
Government sources confirmed to Sky News that the Home Office is "looking at what maritime assets" it may need to deal with the issue.
Mr Sunak refused to deny the Navy could be used, telling Sky News: "I wouldn't want to speculate on exactly what measures will be put in place.
"It's important that we work closely with our French allies on this situation.
"Obviously France is a safe country for migrants to be.
"We all want to see these crossings reduced and, pending the outcomes of those conversations, we can decide on the best next steps to take."
Mr Philp said the UK would be returning as many migrants as possible to France and that return flights were scheduled over the coming days.
The immigration minister added that 22 people smugglers have been jailed in the UK so far this year, and two more were charged last weekend.
Home Secretary Priti Patel, whose department is responsible for immigration, tweeted her frustration on Friday afternoon, calling the number of crossings "shameful".
"France and other EU states are safe countries. Genuine refugees should claim asylum there, not risk their lives and break the law by coming to the UK," she wrote.
Ms Patel added that she wanted to work to be able intercept boats and turn them back, making the route "unviable".
"We also need the cooperation of the French to intercept boats and return migrants back to France," she said.
"I know that when the British people say they want to take back control of our borders - this is exactly what they mean."
In response, Labour's shadow home secretary, Nick Thomas-Symonds, said: "The lack of government competence around this issue is deeply concerning.
"It means that people are still risking their lives in the channel and Ministers are failing to get to grips with the crisis.
"The home secretary should urgently work with her French and International counterparts to find a solution."
Thursday's record was set only a week after the previous highest number of migrants - 202 - crossed in a day.
In July, more than 1,100 migrants arrived in the UK, a figure that is almost as high as May and June combined.
The rising number of migrants making the risky crossing over the Channel has risen as evictions from the Calais "jungle" migrant camp in France are said to have reached their highest numbers since 2016 - something the Calais authorities deny.
Human rights charity Detention Action accused the Home Office of having "lost control" after Thursday's record number of crossings.
The charity's director, Bella Sankey, said: "The Home Office has lost control and all credibility on this issue, fuelling chaos, criminality and untold trauma for those who feel forced to make these dangerous crossings.
"Trying to make this route 'unviable' through greater enforcement is naive grandstanding and amounts to more of the same.
"What is needed is recognition that people who reach France will have valid claims to protection in the UK and the urgent development of safe and legal routes for them to do so.
"This would end the crossings overnight and ensure we are standing by our age-old tradition of protecting those seeking sanctuary on our shores."