The militant group has sent children to carry out attacks in crowded markets and religiouscenters. The children sometimes do not know they are carrying explosives. The boys and girlsare rarely considered as a threat by police or security forces.
Over the past two years, UNICEF said, Cameroon alone has recorded 21 suicide attacksinvolving children. Nigeria has 17 such attacks, while Chad has two.
The report was released on the second anniversary of Boko Haram's kidnapping of 276 girlsfrom Chibok in northern Nigeria. Among those, 219 are still missing.
Women and girls freed from Boko Haram say the militants used them as sex slaves or forcedthem to assist in the group's operations.
Boko Haram's seven-year campaign of violence has killed 20,000 people and displaced morethan 2 million others.
The group set out to establish its version of Islamic law in northern Nigeria. That has includedlaunching war on Western education. Human Rights Watch reported Tuesday that Boko Haramhas killed 611 teachers since 2009. Attacks have destroyed or led to the closure of over 2,000schools.