A Houthi follower hangs a banner outside the Saudi embassy with photos of people killed by Saudi-led air strikes, Sanaa, May 25

ADEN — Seven members of a family were killed in an overnight strike by Saudi-led warplanes on a border village in northern Yemen, residents said, as heavy clashes erupted across the frontier after Houthi fire killed one Saudi citizen.

In southern Yemen, the Saudi-led airforce launched nearly 20 raids on Houthi fighters in the port city of Aden, while fighters allied with exiled President Abd-Rabbu Mansour Hadi made advances near the Houthi-controlled al-Anad military base.

Saudi-led forces have been targeting fighters of the Iranian-allied Houthi group and supporters of former President Ali Abdullah Saleh since in March, part of a campaign to restore Hadi to power.

Residents of the al-Mohssam village, in the northern Hajjah province, said two children and five men and women from the same family were killed in the overnight raid on their home.

A spokesman for the coalition was not immediately available for comment, but the alliance says it only targets Houthi militias and forces loyal to Saleh.

A spokesman for the Saudi civil service in the southern city of Najran said one citizen was killed and five wounded by projectiles fired from Yemen.

Saudi forces had earlier pounded the Houthis after fighters from the group attacked Jabal Tweileq, a hilltop on the Saudi side of the border.

The United Nations has said that more than 1,870 people have been killed and more than 7,000 wounded in the conflict since March 19.