"From today, the Royal Navy will take over operational command from Border Force in the Channel with the aim that no boat makes it to the UK undetected," Johnson said in a speech announcing a plan to send those who made the crossing to Rwanda.

Johnson announced extra funds for boats, aircraft and surveillance equipment to patrol the Channel and detain people-smugglers.

"This will send a clear message to those piloting the boats. If you risk other people's lives in the Channel, you risk spending your own life in prison," he said.