Saudi Arabia has threatened action against Yemen's Houthi rebels after accusing the group of sending a drone towards Mecca, deepening tensions as renewed fighting in Yemen spills into the Red Sea and raises fears of a wider regional crisis.
Riyadh said its air defences intercepted the drone before it could reach the Islamic holy city, which receives millions of Muslims during the annual pilgrimage. The accusation immediately drew condemnation from across the Muslim world, while the Houthis dismissed the Saudi account as false.
Houthi politburo member Hazem al-Assad rejected Riyadh's statement, calling it "a worn-out lie that has been used before and no longer fools anyone".
Saudi Arabia's foreign ministry described the alleged incident as a "cowardly terrorist attack" and said the kingdom had the right to "defend the security of the two holy mosques, the pilgrims, and the entire Saudi territory".
The Saudi-led coalition fighting the Houthis also warned that any threat to the holy sites or pilgrims would trigger a response.
"The security of the Two Holy Mosques and the pilgrims is a red line," the coalition said.
"The coalition will not hesitate to take the necessary and deterrent measures against the Terrorist Houthi Militia."
The reported drone incident came after Saudi authorities issued alerts on Tuesday warning of possible attacks in Mecca and parts of the country's south.
Residents in Mecca described moments of fear after the alerts were received.
One resident, speaking to AFP on condition of anonymity, said they "saw a few people panicking, running to the window to see what happened" after people received warnings on their phones.
The resident said the situation later returned to normal, adding that the city had experienced similar incidents in the past.
"But, they added, "life is normal in Mecca, and there have been previous incidents in Mecca so this isn't the first one.""
Another resident said the warnings had caused fear among people in the city.
"I won't hide that we were scared," the resident said on condition of anonymity.
"Aren't they Muslims? They're targeting the holiest city. What's inside to target?"
Saudi Arabia has previously accused the Houthis of launching attacks towards Mecca during an earlier phase of the conflict.
The latest claim has also attracted condemnation from Islamic and Arab bodies.
The Organisation of Islamic Cooperation, which represents 57 Muslim countries, condemned the "heinous attacks".
Arab League chief Nabil Fahmy described the reported incident as "a matter of extreme gravity".
During this year's hajj pilgrimage, the Saudi defence ministry released footage showing advanced air defence batteries deployed around the outskirts of Mecca.
Fighting intensifies in Yemen
The dispute over the alleged attack comes as Yemen's long-running civil war enters another violent phase.
Fighting had remained largely dormant since 2022 before the Houthis launched a major offensive against government forces in July. The group has controlled large parts of northern Yemen for years.
The renewed violence has already driven more than 100,000 people from their homes, according to the United Nations.
Yemen's permanent representative to the United Nations, Abdullah al-Saadi, said government forces were seeking to restore "national institutions across every inch" of the country and appealed to the international community to take action against the Houthis.
The latest escalation has also brought Saudi Arabia directly into the renewed fighting.
Houthi military spokesman Yahya Saree claimed Saudi forces had carried out more than 450 strikes on Yemen during the week.
He said the Houthis responded by attacking a Saudi air base in the south and a state oil company facility in Yanbu, a Red Sea port city.
The group also claimed on Wednesday to have shot shot down a Saudi fighter jet.
Red Sea tensions grow
Beyond the fighting on land, the conflict is creating new pressure around the Red Sea, a major international shipping route.
The Houthis have declared a maritime blockade on Saudi ships and have taken control of the entirety of Yemen's Red Sea coast and the Bab al-Mandab Strait, according to the report.
The strait is an important route for Saudi oil exports and provides access to the Suez Canal, a key source of revenue for Egypt.
Saudi Arabia's de facto leader Crown Prince Mohammed bin Salman and Egyptian President Abdel Fattah al-Sisi on Tuesday called for free navigation through the Red Sea.
The Houthis have maintained that there is no danger to navigation through the Bab al-Mandab Strait except for Saudi vessels. However, attacks in the waterway could make the route less appealing to shipping companies.
Qatar warned about the consequences of a possible closure of the strait, saying it would be "catastrophic for the entire world".
The renewed war has left Riyadh responding to Houthi advances, while Saudi retaliatory attacks have failed to reverse the group's recent gains.
US media reported last week that Crown Prince Mohammed bin Salman had personally asked President Donald Trump to intervene in the conflict, but the request was turned down.
A US military task force is meanwhile helping improve intelligence-sharing and planning support for Saudi forces, according to a US official who spoke to AFP on Tuesday.
The latest escalation therefore places the dispute over Mecca alongside a broader confrontation involving Yemen, Saudi Arabia and shipping through one of the region's key waterways.