In 2018, some 2,299 people are estimated to have died or gone missing at sea while crossing the sea to reach Europe to escape war or persecution or to pursue a better life. This is on average more than six people per day. Before mid-2017, a significant share of migrants in distress at sea have been rescued by civil society vessels deployed with a humanitarian mandate to reduce fatalities and bring rescued migrants to safety. In 2018, however, authorities in some Member States viewed civil society-deployed rescue vessels with hostility. As a reaction, they seized rescue vessels, arrested crew members, and initiated legal procedures against them (more than a dozen altogether). In some cases, rescue vessels were blocked in harbours due to flag issues.