Search and rescue efforts

Libyan Red Crescent workers stand around a body of a drowned migrant near the city of Khoms, some 100 kilometers (60 miles) east of Tripoli, Libya, Friday, July 26, 2019. Libya's coast guard recovered dozens of bodies of Europe-bound migrants who perished at sea as search operations continued Friday, a day after up to 150 people, including women and children, went missing and were feared drowned after their boats capsized in the Mediterranean Sea. (AP Photo/Hazem Ahmed)

In this Thursday, July 25, 2019 photo, rescued migrants rest near the body of a drowned migrant on a coast some 100 kilometers (60 miles) east of Tripoli, Libya The U.N. refugee agency and the International Rescue Committee say up to 150 may have perished at sea off the coast of Libya. The country's coast guard says the Europe-bound migrants are missing and feared drowned after the boats they were traveling on capsized in the Mediterranean Sea. A spokesman says they rescued around 137 migrants on Thursday. (AP Photo/Hazem Ahmed)

Rescued migrants rest on a coast some 100 kilometers (60 miles) east of Tripoli, Libya, Thursday, July 25, 2019. The U.N. refugee agency and the International Rescue Committee say up to 150 may have perished at sea off the coast of Libya. The country's coast guard says the Europe-bound migrants are missing and feared drowned after the boats they were traveling on capsized in the Mediterranean Sea. A spokesman says they rescued around 137 migrants on Thursday. (AP Photo/Hazem Ahmed)

Rescued migrants rest on a coast some 100 kilometers (60 miles) east of Tripoli, Libya, Thursday, July 25, 2019. The U.N. refugee agency and the International Rescue Committee say up to 150 may have perished at sea off the coast of Libya. The country's coast guard says the Europe-bound migrants are missing and feared drowned after the boats they were traveling on capsized in the Mediterranean Sea. A spokesman says they rescued around 137 migrants on Thursday. (AP Photo/Hazem Ahmed)

Rescued migrants rest on a coast some 100 kilometers (60 miles) east of Tripoli, Libya, Thursday, July 25, 2019. The U.N. refugee agency and the International Rescue Committee say up to 150 may have perished at sea off the coast of Libya. The country's coast guard says the Europe-bound migrants are missing and feared drowned after the boats they were traveling on capsized in the Mediterranean Sea. A spokesman says they rescued around 137 migrants on Thursday. (AP Photo/Hazem Ahmed)

Rescued migrants rest on a coast some 100 kilometers (60 miles) east of Tripoli, Libya, Thursday, July 25, 2019. The U.N. refugee agency and the International Rescue Committee say up to 150 may have perished at sea off the coast of Libya. The country's coast guard says the Europe-bound migrants are missing and feared drowned after the boats they were traveling on capsized in the Mediterranean Sea. A spokesman says they rescued around 137 migrants on Thursday. (AP Photo/Hazem Ahmed)

A girl cools off by standing in a park fountain in Antwerp, Belgium, Thursday, July 25, 2019. Belgium braced itself for code red, extreme heat warning, on Thursday as temperatures soared during the second heat wave of the summer. (AP Photo/Virginia Mayo)

FILE - In this Wednesday, July 10, 2019 filer, a view of the cemetery of the Pontifical Teutonic College at the Vatican. The mystery over the 1983 disappearance of the 15-year-old daughter of a Vatican employee has taken yet another twist following excavations this week at a Vatican City cemetery. The Vatican said Saturday it had discovered two sets of bones under a stone slab. An official says the area was immediately sealed off and would be opened in the presence of forensic experts on July 20. (AP Photo/Gregorio Borgia, File)

Members of the Zhang family support Lifeng Ye, second from left, mother of murdered University of Illinois visiting scholar Yingying Zhang, as attorney Zhidong Wang, foreground, translates a statement from the father, Ronggao Zhang, during a news conference, Thursday, July 18, 2019, at the U.S. Federal Courthouse in Peoria, Ill. Brendt Christensen was sentenced Thursday to life in prison for Yingying Zhang's kidnapping and murder. (Matt Dayhoff/Journal Star via AP)

Sea-Watch3 German captain Carola Rackete leaves after being questioned in court in the southern Sicilian town of Agrigento, Italy, Thursday, July 18, 2019. Rackete, who forced a government block docking at an Italian port after rescuing migrants, faces questioning by Italian prosecutors over allegedly aiding illegal immigration. (Pasquale Claudio Montana Lampo/ANSA via AP)