Tunnel passengers are facing delays after services were suspended for a time when an alarm went off as a freight shuttle train passed through.
Passenger and freight shuttle trains as well as Eurostar high-speed services were halted as technicians checked the France-bound train, which stopped around mid-tunnel.
Border Force officers at the Channel Tunnel entrance in France have seized around 578 boxes of counterfeit cosmetic gift sets with a potential value of up to £10 million.
The seizure was made in the early hours of 28 August as officers carried out checks on a Dutch-registered vehicle en route to a business park in Newcastle-under-Lyme.
The Border Force team inspected the load and it soon became clear that the cosmetic sets and their packaging were of inferior quality.
The goods were seized and the investigation has been passed to Kent County Council Trading Standards.
The Channel Tunnel is celebrating its 20th anniversary today. Exactly 20 years ago the Queen became one of the first passengers to cross from Kent to France by train through the 23 and a half mile tunnel.
The Channel Tunnel is celebrating its 20th anniversary today.
Exactly 20 years ago the Queen became one of the first passengers to cross from Kent to France by train through the 23.5 mile tunnel.
Shuttles transport cars, coaches and lorries between England and France along twin railway tunnels. Eurostar also uses the Channel Tunnel to run high speed rail services from London to Paris and Brussels.
Since opening more than 330 million passengers have used the tunnel, with more than 65 million vehicles, 20 million of those being trucks.
Eurostar has had to cancel six trains today - two from London to Paris, two from Paris to London, one from London to Brussels and one from Brussels to London.
The Channel Tunnel trouble came as millions took to the roads at the start of the holiday, with the weekend likely to see as many as 16 million cars on the move.
Two separate incidents have led to hours-long delays to those taking Folkestone-Calais shuttle trains and high-speed Eurostar services between London and Paris and Brussels via the tunnel.
The first problem came earlier today when a fatality near Lille in northern France involving a French high-speed train resulted in diversions and delays to Eurostar trains.
Then, just as Eurostar services were getting back to normal, a Eurotunnel passenger shuttle train broke down in the tunnel leading to further delays to Eurostar services and long hold-ups of up to four hours for shuttle-train passengers.
A 42-year-old Dutch man has been charged with drug smuggling after Border Force officers at the Channel Tunnel entrance in Coquelles, France seized drugs with an estimated street value in excess of £5 million.
Exact quantities are still being assessed but the haul included heroin, amphetamine and cannabis.
The drugs were discovered on Saturday when officers stopped and searched a Dutch-registered lorry. The drugs were found in brown cardboard boxes within the vehicle’s load of empty plastic containers.
Hendrik DEKKER, from Nijkerk, Netherlands, appeared at Folkestone Magistrates Court yesterday, charged with the importation.
He pleaded not guilty and was remanded in custody.
French officials say nineteen workers have suffered carbon monoxide poisoning while working overnight in the Channel Tunnel, with one of them in a serious condition.
The incident happened as some 60 workers were changing rail tracks on the line between Calais, France, and Folkestone.
A welder was taken ill in the early hours of Sunday and carbon monoxide poisoning was later diagnosed.
Tunnel traffic was unaffected.
Eighteen other workers have also been taken ill.
An investigation has been launched into the cause of the incident.
An estimated 30 kilos of heroin has been seized at the Channel Tunnel.
The drugs, which have an estimated street value of up to £1.5 million, were discovered on Sunday when officers stopped a Dutch-registered car at the Channel Tunnel entrance in Coquelles, France.
Debora DAATZELAAR and Paul VAN RIJN, both aged 49 and from the Netherlands, appeared at Canterbury Magistrates Court yesterday, Tuesday 27 August, charged with the attempted importation.
They were remanded in custody and will next appear at Canterbury Crown Court on 16 September.