4. 利用中地中海路线的难民和移民人数大幅增加，并有证据显示这条路线仍然十分危险。从 2019 年 9 月至 2020 年 2 月，难民署估计有 124 名难民和移民在中地中海路线的海上丧生或失踪，其中 63 人从利比亚出发。这一数字低于上一时期的 314 人，其中 298 人从利比亚出发。移民组织估计，2019 年 9 月至 2020 年月，因一些难民和移民船只下落不明而出现的“隐形沉船”，中地中海路线可能另有 318 人死亡。1 这些数字不包括返回利比亚后死亡或失踪的人数。在其他路线，移民组织和难民署记录了 330 多名难民和移徙者在西地中海路线、近 80 人在东地中海路线死亡或失踪，上一时期分别为 500 多人和 70 多人。
4. In addition to the significant increase in the number of refugees and migrants using the central Mediterranean route, there is evidence that the journey along this route remains dangerous. From September 2019 to February 2020, UNHCR estimated that 124 refugees and migrants perished or went missing at sea on the central Mediterranean route, including 63 after departing from Libya. This represents a decrease compared with the same period in 2018/19, when 314 perished or went missing, including 298 after departing from Libya. IOM estimated that an additional 318 people may have died along the central Mediterranean route in the period from September 2019 to February 2020 as a result of so-called “invisible shipwrecks”, where the final whereabouts of boats carrying refugees and migrants could not be established.1 Those numbers do not account for people who died or went missing after they were returned to Libya, however. Beyond the central Mediterranean route, IOM and UNHCR recorded over 330 refugees and migrants as having died or gone missing at sea on the western Mediterranean route and almost 80 on the eastern Mediterranean route, compared with over 500 and over 70, respectively, during the same period in 2018/19.