Dozens of anti-migrant protesters waded into the sea to confront 140 asylum seekers rescued from a packed mega-dinghy in scenes which sparked a second wave of protests over the weekend.A large group ran across the beach in Portsmouth and into the water, chanting ‘stop the boats’ and ‘enough is enough’ as a Coastguard vessel prepared to bring them ashore.The demonstrators were dispersed by riot police at 3am today and footage posted online showed migrants being taken off lifeboats to shore, where they were met by several buses which took them to a processing centre in Kent.The incident was the flashpoint which triggered around 500 demonstrators to block the road to try to stop the coaches leaving Portsmouth. Some got into cars and followed the buses on their journey to the Manston facility in Kent.It is the second major anti-migrant protest after hundreds of men wearing balaclavas blockaded the Port of Dover on Saturday.The mega-dinghy had set off from the Baie de Seine in Normandy – a 180-mile drive south west of Calais – suggesting people smugglers are expanding their launch points along the French coast to evade enforcement efforts.But rather than intervene, the French coastguard shadowed the vessel for ten hours, claiming it was too dangerous because of the number of people on board.British lifeboats, supported by a helicopter and a plane, then took over and brought the migrants to the UK.Following calls to action on social media, protesters flocked to the coast and spent at least five hours on Eastney beach and in the water before police threatened arrests after a dispersal order was imposed. The protest is thought to have been spearheaded by Daniel Thomas, pictured as the migrants landed, a Tommy Robinson associate from Portsmouth who met the migrants on the south coast yesterday A protester standing in the water as around 140 migrants who were brought into Portsmouth Demonstrators were heard shouting 'stop the boats' and 'enough is enough' as they blocked roads until around 3am as they tried to stop migrants being taken by bus to Kent After being dispersed by riot police, some got into cars and followed vans carrying the asylum seekers on their journey from Portsmouth to DoverShadow Home Secretary Chris Philp said: 'The last 24 hours have seen multiple violations of the UK border by mega-dinghies full of illegal immigrants which the French authorities have allowed to depart.'Andy Burnham and Shabana Mahmood have been boasting about French action, but hundreds of illegal immigrants arriving in just a few hours shows this is not working 'Their weak approach is leaving our border wide open, with almost 20,000 illegal immigrants crossing so far this year. Only rough seas have prevented even more crossings.' Hampshire and the Isle of Wight's Tory police and crime commissioner Donna Jones said it is a 'significant issue' for the Government if people smugglers shift their destinations away from Dover.In protest footage shared on social media, a riot officer appeared to be pushed from his motorbike as demonstrators, many wearing caps and hoods, shouted: 'Shame on you.'Further clips showed officers carrying shields ordering the crowd to 'get back' before pushing some protesters away from a nearby police van.The protest is thought to have been spearheaded by Daniel Thomas, the Tommy Robinson associate from Hampshire whose Patriot Platform group organised a mass demonstration in Dover on Saturday.Livestreaming the protest Thomas – also known as Danny Tommo – said yesterday: 'It was only [on Saturday in Dover] when we warned them that we will not accept this any more, and that it is no longer an option to tell us the boat numbers are down.'This isn't about the numbers being down. This is about understanding that this has to come to an end now.'Protesters gathered on the beach - and some waded in to the water try to disrupt the arrival - at the moment migrants arrived on a UK Coastguard vessel having crossed to Portsmouth A pile of lifejackets by the road at Eastney, where the migrants landed Several people entered the water and told people to stop the coaches leaving, leading to police imposing a dispersal order and later clashes with riot police Hundreds of protestors clashed with police near Eastney beach in Portsmouth last night after a dinghy carrying 140 asylum seekers was escorted to the shore Riot police were deployed to the scene, though none of the protesters are thought to have been arrested Crowds stayed in the area until as late as midnight on SundayUnlike in Dover, the hundreds of protesters this time chose not to wear masks or balaclavas, although many were dressed in black.The Baie de Seine to Portsmouth crossing is thought to have been one of the longest ever people-smuggling trips. HM Coastguard sent two lifeboats, a coastguard helicopter, a fixed-wing aircraft and rescue teams to ensure the asylum seekers reached the British shore safely. In some clips riot officers appear to be sprayed with water from super-soakers as dozens watching on record them on their phones. Thomas, who livestreamed the event on YouTube, was heard urging his supporters to 'get in your cars and get down here' as he stood waist-deep in the sea.Separate footage meanwhile appeared to show a woman delivering supplies to protesters via canoe. The authorities in France have said that it is unusual for a migrant boat to depart from the Baie de Seine, nearly 200 miles from the usual launches.A Maritime and Coastguard Agency spokesman said: 'In response to a report on September 6 of a small boat heading towards the Hampshire coast, HM Coastguard sent lifeboats, an HM Coastguard helicopter, an HM Coastguard aeroplane and HM Coastguard Rescue Teams. 'Border Force, Border Security Command, Hampshire Police and South Central Ambulance Service were also sent.'Councillor George Madgwick, leader of Reform UK in Hampshire, wrote in a post on X that 'over 100 migrant men' had arrived in Portsmouth.Reform UK leader Nigel Farage meanwhile posted: 'A boat launched from Baie de Seine, 170 miles from Calais, arrived on the beaches of Hampshire for the very first time. This is a joke. Only Reform will send the boats back.' Migrants scramble on board a dinghy in an attempt to cross the English Channel to Britain (A boat in Gravelines, Calais, is pictured, in a separate incident yesterday)