Clashes erupted early on Saturday between forces loyal to Yemeni official government and Houthi group in the Red Sea city of Hodeida, despite UN-brokered ceasefire in place.
"Machineguns and artillery were used in clashes that raged in southern neighborhoods of the city," local sources told Debriefer, "before declined in violence and turned into sporadic shells."
Parties to the nearly 4-year war in Yemen, after 8 days of peace talks in Sweden, reached on 13 December an agreement providing for ceasefire in Hodeida and redeployment of both sides' forces and allowing for UN leading role in the port city.
The pact was followed by UNSC Resolution 2451 authorizing UN Secretary-General to deploy monitors to oversee implementation.
The UN-brokered Stockholm Agreement is facing many challenges and difficulties to implement on ground, as both sides failing to honor their commitments.
Houthi rebels have the largest part of Hodeida City under their control, while government troops are positioned at southern and eastern fringes of the port city.
Yemen has been racked by an armed conflict that broke out after the Iran-backed Houthis had ousted the internationally recognized government late in 2014.
The conflict escalated after a Saudi-led coalition intervened militarily in the country in March 2015 to reinstate the government of President Hadi, leaving tens of thousands killed, hundreds of thousands injured, and 3 million displaced.
The war has pushed the country to the world's worst humanitarian crisis, according to the UN, with more than two thirds of the 28-million population in need for a type of humanitarian aid and immediate protection, including 8.4 million people unsure how to get next meal, and some 2 million children suffering severe shortage of nutrition.