There was no immediate word on casualties.
Marib's pro-government forces also received major reinforcements, including hundreds of Saudi-trained troops, ambulances and armored personnel carriers manned by Saudi and Emirati soldiers, pro-government officials said.
The forces aim to take Saada, the main northern stronghold of the Houthi rebels, they added.
Yemen's conflict pits the Iran-allied Houthis and troops loyal to former President Ali Abdullah Saleh against an array of forces including southern separatists, local and tribal militias, Sunni Islamic militants as well as troops loyal to President Abed Rabbo Mansour Hadi.
Meanwhile, in Yemen's third-largest city, Taiz, shelling by Houthi and pro-Saleh forces killed 14 civilians, independent security and medical officials and witnesses said.
In Aden, al-Qaida militants and other Islamic extremists continue to patrol the streets. Hundreds of al-Qaida militants hold some key areas in the port city, exploiting a vacuum left by pro-government forces pushing north, a high-ranking pro-Hadi security official and two other high-ranking pro-Hadi police officers, all in Aden, said.
"We have a shortage of men," the state security official said. "Getting equipment (from coalition countries) is easy. Getting men to operate them is hard."
All officials requested anonymity because they are not authorized to brief reporters, while witnesses feared reprisals.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
