China said it is gravely concerned about the human rights violations in the U.S., the EU, the UK, Australia and Canada against the migrants and refugees. 

A large number of abnormal deaths in the immigration detention centers are caused by a lack of basic services including food, water and medical supplies, said Jiang Duan, China's senior official at the UN missions in Geneva.

"We are concerned in particular that the United States continued to separate families by forcibly pulling migrant children away from their parents. Many children ended up losing touch with their parents and families, which led to grave human tragedies," Jiang stressed to the UN's top human rights body.

According to the Chinese diplomat, some countries even held migrants in offshore detention centers where migrants were subjected to abuse. In some countries, private institutions operate immigration detention centers, and mistreatment and excessive use of force are frequent, leading to violation of human rights.  

He further called on the Human Rights Council and other UN institutions to continuously attend to human rights violations at immigration detention centers in the countries concerned.

The Chinese diplomat urged the countries concerned to immediately stop human rights violations at immigration detention centers, close all offshore detention centers, halt at once the family separation practice, and respect and protect the human rights of migrants, especially migrant children. 

(With input from Xinhua)