Press TV - Five members of a one Yemeni family have been killed in a Saudi Arabian airstrike in the war-torn country's Hudaydah province.

According to Yemen's Arabic-language�al-Masirah�television network on Monday, a couple and their three children were killed when Saudi warplanes targeted the province's al-Ashraf district.

The incident took place just several days after Saudi�warplanes attacked a school bus at a market in the town of Dahyan in Sa�ada, leaving at least 51 civilians people dead, including 40 children, and nearly 80 others injured.

Earlier on Monday, Huge crowds gathered�in Sa�ada to bury dozens of children recently slain during the Saudi airstrike on a school bus.

UNICEF, the United Nation�s children fund, called the carnage the single biggest attack on children in�the ongoing Saudi�war on Yemen.

The United Nations Security Council has�called�for a "credible and transparent" investigation into the airstrike.

Some�15,000 Yemenis have been killed and�thousands more injured since the onset of the Saudi-led aggression on Yemen in March 2015.

The United Nations says a record 22.2 million Yemenis are in need of food aid, including 8.4 million threatened by severe hunger.

A high-ranking UN aid official has warned against the �catastrophic� living conditions in Yemen, stating that there is a growing risk of famine and cholera there.

�The conflict has escalated since November, driving an estimated 100,000 people from their homes,��John Ging, UN director of aid operations, told the UN Security Council on February 27.