The coastguard said the eight migrant boats were found along Britain's southeast coast. A senior British minister said the situation was "alarming" amid concerns that warming weather could fuel more crossings.
There were 32 reported injuries after flames and smoke forced migrants to jump out of the windows of their shelter. It is the second fire in recent weeks to occur in the region, just on the border with Croatia.
There have never been so many people on the move worldwide, and they must be guaranteed healthcare, says the World Health Organization (WHO). This is why they just approved a five-year global action plan for migrant health.
The European Committee of Social Rights of the Council of Europe is calling on Greece to adopt all possible measures to avoid serious harm to minor migrants on the country's mainland and islands.
European member states are calling on Italy to take back 46,000 migrants based on the Dublin Regulation, according to which the migrants are required to return to Italian territory under the responsibility of the Rome government.