National shutdown
Yemen faced interrupted Internet after air strikes on the Red Sea city of Hodeidah, the main landing point for the country's undersea web connection, damaged its telecoms infrastructure. Internet shutdowns during protests or civil unrest impact the ability of citizens to get accurate information from government sources when they need it most. It also becomes harder for citizens to contact family members and friends in other parts of the country, or in other countries.
Local impact
Yemen faced interrupted Internet after air strikes on the Red Sea city of Hodeidah, the main landing point for the country's undersea web connection, damaged its telecoms infrastructure. Internet shutdowns during protests or civil unrest impact the ability of citizens to get accurate information from government sources when they need it most. It also becomes harder for citizens to contact family members and friends in other parts of the country, or in other countries.
Other supporting information
IODA's Internet Connectivity for Yemen shows a drop in BGP visibility from 21:30 local time.

Cloudflare Radar shows a similar drop in Internet traffic in Yemen from 20 January.

Social media
After 3 days of a complete internet shut down, people in #Yemen are finally back online 🥳 — Yasmeen ياسمين (@YEryani) January 24, 2022
Following Saudi horrific attack on Yemen, internet has shutdown. No one can know what is happening in #Yemen. We should express their pain and #Be_voice_of_Yemen — Zainab Ali kd (@ZainabAlikd1) January 24, 2022
I think what we call k-twitter should get out of this hakh batte rhetoric and start talking about Yemen so that more and more people become aware of what the US-Saudi alliance is doing in Yemen. Internet and connectivity has been disbanded and air strikes in sana’a — sarahkoul (@koul_sarah) January 21, 2022