Rob Bauer, acting commander of the Dutch armed forces, identified the victims as a 24-year-old corporal and a 29-year-old sergeant. The UN had already said two of its soldiers were killed but had not revealed their nationality.
The UN peacekeeping mission in Mali said in a statement that the accident happened on Wednesday morning near Kidal.
The mission said an investigation is taking place to determine the cause of the accident. It said the wounded soldier is receiving medical treatment.
There are some 400 Dutch troops in Mali who are part of the 12 000-strong UN mission Minusma. Last March, another two Dutch soldiers were killed in a helicopter crash near Gao.
