Border security is being strengthened in northern France and Dover after migrants desperate to reach the UK tried to exploit ferry strike action.
Hundreds of migrants at the French port of Calais tried to board delayed vehicles heading to the UK.
Speaking to BBC,Immigration minister James Brokenshire said the situation was “hugely regrettable”.
The government is to announce a new taskforce to tackle organised immigration crime in the Mediterranean reports BBC.
The 90-strong law enforcement team will include staff from the Border Force, the National Crime Agency, Immigration Enforcement and the Crown Prosecution Service.
A handful will be based with Europol in Sicily and the Hague, in the Netherlands, with most on deployment standby in the UK.
Tuesday’s industrial action by French ferry workers led to the suspension of trains through the Channel Tunnel between the UK and France.
Hundreds of migrants tried to board slow-moving UK-bound lorries amid the chaos.