内容摘要：The costs of recovery and upgrading security systems could also have a "long-lasting ripple effect" on the company's finances, he added.

The costs of recovery and upgrading security systems could also have a "long-lasting ripple effect" on the company's finances, he added.

The RSF had previously used what are known as suicide or loitering drones, small UAVs with explosive payloads that are designed to crash into targets and can carry out coordinated attacks.It seems to have deployed this method in Port Sudan, with the commander of the Red Sea Military Zone Mahjoub Bushra describing a swarm of 11 Kamikaze drones in the first strike on a military airbase.

He said the army shot them down, but they turned out to be a tactical distraction to divert attention from a single strategic drone that successfully struck the base.The make of this drone is not clear. But satellite images reported by Yale researchers and the Reuters news agency have shown advanced UAVs at an airport in South Darfur since the beginning of the year.The defence intelligence company Janes has determined them to most likely be sophisticated Chinese manufactured CH-95s, capable of long-range strikes.

Jeremy Binnie, an Africa and Middle East analyst at Jane's, told the BBC that photos of what appear to be the remnants of the smaller kamikaze drones suggest they are probably a different version than the RSF had used before, and might be better at penetrating air defences because of their shape.One regional observer suggested the RSF had been able to breach the SAF's anti-drone technology with signal jammers attached to the drones, but cautioned this was still unproven.

The South Darfur airport in Nyala, the presumptive capital and military base of the Rapid Support Forces, has been repeatedly bombed by the SAF, which destroyed an aircraft there earlier this month.

Some experts see the RSF's bombardment of Port Sudan at least partly as retaliation.The four-day conflict between arch-rivals India and Pakistan this month ended with a ceasefire and both claiming victory – but it now appears that China's defence industry might also be an unlikely winner.

Thebegan on 7 May when India launched attacks on what it called "terrorist infrastructure" inside Pakistan in response to the brutal

by militantsin Pahalgam on 22 April.