On Friday, an attack on a market in Taiz province was reported to have killed 30 people. The province has been the focus of much of the recent fighting in Yemen.
Taken together, the reported deaths in Taiz, the strike on al-Shariyah, the intercepted missile bound for Riyadh and a public vow of revenge mark a return to open fighting after years of dormancy.
Saudi Arabia, which leads the coalition fighting the Houthis in Yemen, has not commented on the reported market attack.
Major fighting has since resumed in Yemen between the Houthis and forces fighting for the Saudi-backed government of Yemen.
The war in Yemen had been dormant for several years but reignited as a result of the Iran war.
A Houthi leader, Mahdi al-Mashat, vowed that the group would take revenge for the latest attacks in Yemen.
There has been no comment from the Saudi-led coalition backing the internationally recognised government in Yemen.
More than 300,000 people have been displaced in the same period, the United Nations says.