Yemen says its army troops have killed 28 Houthi fighters during fierce clashes in the country's mountainous north, Press TV reported.
The Defense Ministry said on its website on Wednesday that the fighters were killed after clashes erupted at Uqab, west of Saada city, AFP reported.
In another incident in neighboring Omran province, soldiers killed five fighters in clashes in the Harf Sufyan district, military officials said.
Four troops were also killed in the battle.
Yemen has witnessed fierce fighting in its northern provinces since the government launched its 'Scorched Earth' operation against the Zaidi fighters.
Amid ongoing fighting in the north, fierce clashes also erupted in the south between security forces and local fighters who say they have been marginalized politically and economically since the country's unification in 1990.
In the southern city of Daleh, clashes broke out as security forces confronted protesters who took to the streets on Wednesday to demand the release of the detainees who were arrested during the recent unrest, witnesses said.
Two demonstrators were killed and 17 people wounded, including nine members of the security forces, an opposition source said.
Around 40 people have been killed in clashes with security forces since April in the impoverished south.