- Fire broke out at Greece's overcrowded migrant camp of Moria on the island of Lesbos early on Wednesday.
- The Moria facility, which hosts more than 12,000 people - more than four times its stated capacity - has been frequently criticised by aid groups for poor living conditions.
- Lesbos, which lies just off the Turkish coast, was on the front line of a massive movement of refugees and migrants to Europe in 2015-2016.