"We're going to try again and again to cross to the UK," one migrant told the BBC
The UK and French governments are set to announce measures aimed at returning some migrants.
Lisa Russell says they have "no idea" a man and a teenager were hiding on the bike rack.
A couple are "ecstatic" having been fined £1,500 after they reported a stowaway on their bike rack.
The former head of Border Force says a collaborative approach is needed to tackle human smuggling.
The Kuwati man, in his sixties, suffered a cardiac arrest on the boat that was carrying him from northern France, officials said.
The mayors say co-operation is “a must” and it is time for the UK prime minister to visit.
Some rescues have taken place as far south as Dieppe, more than 180km (112 miles) from Calais
2024 was the deadliest year in the Channel, with 77 people known to have drowned trying to cross.