Sana’a: Three rebels and a Yemeni soldier were killed on Saturday in a gunfight on the outskirts of the northern city of Amran, rebels and a security official said.

The rebels, known as Al Houthis or Ansar Allah, had travelled to Amran to take part in a demonstration, but a gun battle broke out when they insisted on crossing a checkpoint to the northern entrance to the city with their weapons, the official said.

Seven more rebels were wounded in the ongoing clashes, the Al Houthis said, and the security official said two soldiers were also hurt.

Last week, Al Houthis armed with assault rifles, marched in Amran along with vehicles mounted with rocket launchers, demanding the sacking of the “corrupt government”.

The Al Houthis have fought the central government in Sana’a for years, complaining of marginalisation under former president Ali Abdullah Saleh, who was ousted in 2012 following a year of protests.

Last month, President Abd Rabbo Mansour Hadi and party leaders in Sana’a agreed to transform the country into a six-region federation as part of a political transition.

The rebels, who complain that Yemen would be divided into rich and poor regions under the plan, have been trying to enlarge their zone of influence by pushing out from their mountain strongholds in the far north to areas closer to the capital.

In early February, they seized areas in Amran province, leaving more than 150 people dead in fighting with local tribes. Military sources said last week the rebels’ objective is to seize Amran city and, from there, lay siege to the capital.