Saudi Arabia held nearly 5.7 million in immigration sweep
Since Riyadh began a clampdown in November 2017, 5,651,619 people have been arrested, including 803,186 over labour violations, the official Saudi Press Agency reported.
The report said that 54 percent of people arrested while attempting to cross into the kingdom were Ethiopian citizens, while 43 percent were from Yemen.
A further 9,550 people were arrested for attempting to cross into neighbouring countries.
Penalties were issued against 715,216 people, while 1,559,919 were deported from the kingdom.
Saudi Arabia's detention of migrants has drawn criticism from rights groups, who have accused the kingdom of keeping people in squalid, overcrowded conditions throughout the coronavirus pandemic.
Earlier this week, the Euro-Mediterranean Monitor human rights group said that Saudi Arabia has detained Ethiopians living in the kingdom regardless of immigration status.
The group urged Riyadh immediately and unconditionally release all detainees and end its alleged targeting of Ethiopians.