A ceasefire aimed at facilitating the delivery of humanitarian aid to people affected by violence kicked off in Yemen Tuesday night.
The ceasefire will continue for five days and could be extended in case it was not violated by the Houthi militants.
Earlier today, the new UN Secretary General's envoy to Yemen Ismail Ould Cheikh arrived in the capital city of Sanaa to start talks with Yemeni factions.
There were no details about Sheik's agenda.
During the day, Saudi-led airstrikes targeted Houthi-controlled weapons, brigades and war positions in several cities including the capital Sanaa.
Also, Houthi militants escalated their attacks on populated areas and battles with pro-government popular resistance fighters in Taiz, Aden, Lahj and other cities.
At least 10 civilians were killed and dozens of others injured after militants shelled residences in Taiz, local sources said.
In Dhale and Shabwa, dozens of Houthis were killed during clashes with pro-government fighters.
Violence after the Houthi militants ousted the transition president and government and a blockade by Arab countries on Yemen's ports have been blamed for fast deteriorating humanitarian situation.
Yemenis cities have been facing lacks of food, fuels and medicines since the blockade was imposed in late March.
The fuel shortage has forced power plants, many businesses and transport to shut down leaving Yemenis to face the worst crises ever.
Tens of vessels carrying relief aid are en route to the country where more than half of population are looking forward to emergency help, officials said.