Aden and Riyadh, Asharq Al-Awsat—Around 100 people have been killed in shelling by Houthi rebels on the southern port city of Aden, according to international NGO Doctors Without Borders.

The organization’s Hassan Boucenine told the Associated Press almost 100 people have so far been killed during Sunday and Monday’s shelling of the Dar Sa’ad district in the north of the city, more than the 43 announced on Sunday by local health officials. More than 200 have been injured.

Some 80 percent of the victims are civilians. Boucenine said they included pregnant women, children, and the elderly. He called Sunday “the worst day in Aden” in terms of civilian casualties for three months and said he feared “attacks on civilians will continue.”

On Sunday sources told Asharq Al-Awsat the area was hit by Katyusha rockets launched by the Houthis as they fled an advance by government loyalists.

The loyalists, known as the Popular Resistance, aided by army units on Monday took control of the central Tawahi district in Aden, one of the last remaining pockets of Houthi resistance in the city, a Popular Resistance spokesman said. They also closed in on the city’s airport.

The Houthis took over the airport and other parts of Aden in March. But during the last week the Popular Resistance, aided by Saudi-led airstrikes against the Iran-backed Houthis, have been able to recapture most of the city.

The Saudi-led campaign began in late March after Yemen’s international recognized President Abd Rabbuh Mansur Hadi fled Aden to Saudi Arabia to request military intervention from Riyadh and its Arab allies.

This followed his escape from a month-long Houthi-imposed house arrest in the capital Sana’a.

The Houthis occupied Sana’a in September of 2014 and then launched a coup in February deposing Hadi and his government, who in March attempted to form a rival power base in Aden.

On Friday some members of the cabinet returned to the city for the first time in three months and held meetings with local officials.

Yemen’s Foreign Minister Riyadh Yassin will meanwhile head to London, Brussels and Paris starting Tuesday in a bid to secure support for the government.

Yassin told Asharq Al-Awsat he will explore with British, Belgian and French officials initiatives to help rebuild the country, beginning with Aden after the rest of the government returns to the city in the coming period.

“The first leg of the trip will be in London and will include meetings with Neil Crompton, the Middle East and North Africa director at the Foreign and Commonwealth Office, Tobias Ellwood, parliamentary undersecretary of state for the Foreign and Commonwealth Office, and global humanitarian relief organizations, as well as a meeting in the British House of Commons,” Yassin said.