The International Committee for the Red Cross (ICRC) said that a hospital it supports in Saada had received 29 dead bodies of "mainly children" under 15 years of age, and 40 injured, including 30 children.
The attack on Jazan was the second ballistic missile fired at Saudi Arabia by the Iran-backed rebels this week.
The missile was sacked from Amran province in northern Yemen on Wednesday night, the coalition said in a statement published by the Saudi Press Agency.
Nearly 10,000 people - two-thirds of them civilians - have been killed since the Houthi movement took control of much of the north of the country, including the capital Sanaa, in 2014, forcing President Abdrabbuh Mansour Hadi into exile in neighbouring Saudi Arabia.
"Central Command was not involved in the air strike in Saada".
The Huthi' Al-Masirah TV reported that 39 people had been killed and 51 wounded, "mostly children".
He added: "Launching ballistic missiles at densely-populated civilian areas is a direct breach of the principles of global humanitarian law".
Colonel al-Maliki said the coalition will take all necessary actions against the criminal, terrorist acts of pro-Iranian Houthi militias, such as the recruitment and placement of children on battle fronts and "using them as tools to cover for their terrorist acts".
"Save the Children condemns this horrific attack and is calling for a full, immediate and independent investigation into this and other recent attacks on civilians and civilian infrastructure, including schools and hospitals", said the group in a statement.
Turki al-Maliki said the kingdom's air defense had intercepted a ballistic missile fired by the Houthi rebels at a densely populated civilian area in Jizan, according to the Saudi Press Agency.
The United States and other Western powers provide arms and intelligence to the alliance, and human rights groups have criticised them over coalition air strikes that have killed hundreds of civilians at hospitals, schools and markets.
Saudi Arabia, the UAE and their allies in the Arab Coalition intervened in the conflict at the request of Mr Hadi's government.
The Saudi coalition has been at war with the Houthis since March 2015.
The first day of the campaign rounded up 500 weapons from tribal members in the area, said Col Al Buhar.
It is with the stated aim of dislodging the Houthis, and restoring the previous government, that the Sunni coalition has waged a years-long airstrike campaign in the country with the support of the U.S. Since large-scale fighting erupted in 2015, the ensuing violence has left more than 10,000 people killed and the country's health infrastructure so badly battered, almost 18 million Yemenis lack reliable access to food.
"It's hard to believe we live in a world where children should live in fear of such attacks, yet here we are", she added.
Canadian exports to Saudi Arabia totalled about $1.12bn in 2017, or 0.2 percent of the total value of Canadian exports. According to the Toronto Star , Canada's largest export recently has been armoured tanks and personnel carriers.
Pippa was in attendance at Harry and Meghan's wedding back in May, with Kate's family very much a part of royal life. Princess Eugenie and her boyfriend Jack are counting down the days until their October 12 wedding.
And it appears the latter had a key role to play in bringing the World Cup's highest scoring defender to the north west club. Barcelona can buy the centre-half back for around £30m if he does well at Goodison but, for now, he is an Everton player.
Since then, Sonic has spawned endless video games, cartoons, and even the longest running comic book based on a video game. The movie will mix CG and live-action, and Carrey confirmed that his character will be live-action.
However, there was no indication that it was a deliberate tactic on his part or that he was being economical with the truth. Regardless of who's to blame, the Portuguese boss must now work with the players he's got to achieve a respectable season.
In 2013, Bachelet returned to Chile to run for president again and was elected and served a second term in 2014-2018. The new UN High Commissioner for Human Rights must be confirmed by the 193-member UN General Assembly.
Lehman was asked about the future of Arsenal under new manager Unai Emery as well as the competition he faces in the league. He's very particular on player positioning depending on where the ball is in certain areas of the pitch.
The NCAA made a number of rule changes Wednesday that could have an impact on the Kansas men's basketball team. They'll also be allowed to be represented by agents, in college and, for some, as high school prospects.
Tom Brady to have contract adjusted with big incentives
Even with his salary likely to sit at roughly $20 million, Brady will be a bargain among quarterbacks of his calibre. Ten other quarterbacks have a higher salary cap value than Brady, who is slated to earn $15 million in 2018.
Samsung Galaxy Note 9 gives power users more of everything
Thinking about the Galaxy Note 9 as a computer becomes particularly interesting when you consider the absolute mainstream user. It will let users remotely control the Note 9's camera and switch between slides in a presentation, the company said .
US Space Force: America to 'establish space dominance' by 2020
The proposal taps into the American public's long fascination with space but with a military focus, and it faces daunting hurdles. Satellites provide communications, navigation, intelligence and other services vital to the military and the national economy.