A bomb in Yemen kills 20 children and 11 others Tuesday and authorities believe that the two bombing attacks were intended for the Houthi militants.

According to WREG Memphis, senior security officials found out that two suicide bombing cars were used by alleged al Qaeda fighters to carry out the bombing attacks.

The first car - carrying potatoes with explosives hidden underneath - targeted a Houthi gathering point but missed it, incidentally hitting a bus carrying young students on their way from school.

Prominent Pro-Houthi Activist Osama Sari told reporters that the 20 children killed in the Yemeni bombing were mostly at the age of 12 and below.

"The suicide car bombs were supposed to directly hit the Houthi camp. When they failed to reach the core target, many innocent children lost their lives," Sari added.

The death toll was said to be at 31 since 11 adult Houthi fighters were apparently killed.

Meanwhile, 12 were reportedly injured and six of them were in critical condition as per statements from the hospitals attending to their injuries.

Apart from the Yemen bomb that killed 20 children and 11 others, another attack was carried out through a second car, which was targeting the house of rebel leader Abdullah Idris, reports Gulf News.

Local eyewitnesses said four pickup trucks quickly responded to the scene to pick up dead bodies, including several body parts that littered the street along with the potatoes.

A number of ambulances also rushed to the scene to help the badly wounded survivors.

Al Houthi blames al Qaeda for the bombing attacks in Radaa in the central province of al-Bayda, even codemning it as "the ugliest crime against childhood."

Amid the bombing attacks, many took to social media to express their thoughts over the incident, Twitchy has learned. 

"I condemn the attack in Radaa #Yemen today.  Indiscriminate killing of civilians is never justified. My thoughts with families of those lost," Jane Marriott wrote.

"Now a car bomb in Yemen's Radaa City kills at least 31 people inc. 20 children. Much of the Islamic world is clearly in crisis," Andrew Neil tweeted.

"@afneil: Now a car bomb in Yemen's Radaa City kills at least 31 people inc. 20 children." Yes this day can get even worse," Vivek Thiyagarajan commented.

The families of the 20 children killed in the Yemen bombing are yet to comment on the incident.