Tehran, April 29 -- Iran's Foreign Ministry on Monday strongly condemned the U.S. deadly airstrikes on Yemen's capital of Sanaa and Saada province, including a center where African migrants were kept.

In a statement, Foreign Ministry spokesman Esmaeil Baghaei denounced Sunday's bombings, which killed at least 78 people, including 68 African migrants held at a detention center in Saada, and wounded dozens of others.

Baghaei described the U.S. military attacks against civilian targets, vital infrastructure and people's houses in different parts of Yemen as "war crimes," "which have killed hundreds of innocent people."

He criticised the United Nations and international human rights organisations for their "silence and indifference toward...