The conflict in Yemen has killed at least 74 children and displaced more than 100,000 people in the past couple of weeks, UNICEF reported Monday.

UNICEF's Yemen representative, Julien Harneis, said that children “are being killed, maimed and forced to flee their homes, their health threatened and their education interrupted."

The U.N. Office for the Coordination of Humanitarian Affairs said that at least 549 people have died in Yemen since March 19, 217 were civilians. And more than 1,700 people have been wounded in the violence.

OCHA also said the battles in Yemen and Saudi-led airstrikes has made providing humanitarian services much more difficult, however “partners are working to import critical supplies - mainly to support hospital services - and deploy emergency medical teams.”

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The Saudi-led air campaign against Yemen began March 26 in response to the Houthis, an Zaidi Shiite ethnic group from the south of the country, taking control of the Yemeni government and kicking out the Yemeni President Abd Rabbuh Mansur Hadi. The conflict is between allies of President Hadi and Houthi militants and former Yemeni president Ali Abdullah Saleh's supporters.

On Tuesday, on the 13th day of the conflict, local groups fought against the Houthi rebels in the southern province of Ibb, while the Saudi-led coalition conducted air strikes against a military site in southern Yemen in the same area. The airstrikes targeted the Republican Guards' camp and reportedly wounded more than 25 soldiers. The camp is near a school and three children were killed in the bombing.

The Guards are loyal to Saleh, who is supposed to be allied with the Houthis, who have taken over most of the country in the past few months.