The Yemen's Houthi group said Sunday its unmanned aerial vehicles (UAVs) attacked the Saudi southern port of Jizan.
The drone air force has launched offensive operations with a number of (k2) UAVs, said the rebel-run al-Masyrah TV.
No immediate statement has been issued by either coalition or Saudi Arabia on the Houthi claim.
The Houthi "operations have targeted parks and stations of drones participating in the aggression on Yemen," the group's mouthpiece quoted a rebel military source as saying.
The air attacks come after the "aggression states turned Jizan airport into military base," added the source.
Last May, Houthis they conducted drone attacks on warplanes yards in the Saudi Jizan airport.
Yemen has been racked by a 4-year bloody conflict between the internationally-recognized Yemeni government's forces, backed by a Saudi-led coalition, and the Iranian-backed Houthi rebels who ousted the government in 2014.
Saudi Arabia has been leading a military coalition in Yemen since 26 March 2015, in support of forces loyal to President Hadi to retake areas controlled by Houthi (Ansarullah) group seen as proxy for Iran in the Arab Peninsula country.
Mid-May, Houthis claim their forces hit Saudi targets, including two oil pumping stations near Riyadh, with the rebels saying they are in retaliation to coalition strikes on its forces and civilian targets in Yemen.
Houthis sporadically fire ballistic missiles and UAVs on Saudi territory "in reply to coalition airstrikes that target Yemeni civilians and infrastructure," while Saudi Arabia accuses Iran of providing Houthis with such missiles.
Houthis said they have a bank of 300 vital targets in Saudi Arabia and United Arab Emirates.