DHAKA, Bangladesh >> A truck filled with aid for Rohingya Muslim refugees in Bangladesh veered off a road and fell into a ditch Thursday morning, killing at least nine aid workers, hours after another aid shipment in the refugees’ violence-wracked home state in Myanmar was attacked by a Buddhist mob.

Both shipments were from the International Committee of the Red Cross. Aid groups face different challenges on either side of the border: An influx of more than 420,000 refugees in less than a month in Bangladesh, and in Myanmar, government resistance and angry allegations from majority Buddhists that international organizations are favoring the long-persecuted Rohingya minority.

A Bangladeshi medical administrator, Aung Swi Prue, said six people died instantly in the truck crash near the border in southeastern Bandarban district. Three people died after reaching a hospital, and 10 others were injured and are receiving treatment.

ICRC spokeswoman Misada Saif said all of those killed were Bangladeshi workers hired to distribute food packages to 500 Rohingya families.

Saif said the truck belongs to the ICRC and Bangladesh Red Crescent Society and was operated by a supplier who has been working for the two agencies for last couple of weeks. She said agency officials are “very shocked and sad.”

“Our thoughts are with the families of the dead. They were there to help the people who desperately need help,” she said.

The Rohingya exodus began Aug. 25, after Rohingya insurgent attacks on police set off a military crackdown. Hundreds of people have been killed and thousands of homes have been burned. The government has blamed the Rohingya, even saying they set fire to their own homes, but the U.N. and others accuse it of ethnic cleansing.

Most refugees have ended up in camps in the Bangladeshi district of Cox’s Bazar, which already had hundreds of thousands of Rohingya refugees who had fled prior rounds of violence. Bandarban is a neighboring district where thousands of Rohingya also have fled.

The violence in Myanmar has occurred just across the border in Rakhine state, where police said a Buddhist mob threw rocks and Molotov cocktails at officers Wednesday night as they tried to block Red Cross supplies from being loaded onto a boat. The vessel was headed to an area where hundreds of thousands of Rohingya Muslims have chased from their homes. No injuries were reported and police detained eight of the attackers.

Dozens of people arrived at a jetty in the Rakhine state capital, Sittwe, as a boat was being loaded bottled water, blankets, mosquito nets, food and other supplies. As the crowd swelled to 300, they started throwing rocks and Molotov cocktails at the officers, who responded by firing into the air, said police officer Phyo Wai Kyaw.

The government of the predominantly Buddhist nation of 60 million said police and several monks showed up to try to defuse tensions.

Though Myanmar’s leader, Aung San Suu Kyi, told diplomats this week humanitarian assistance was being sent to those who remain in northern Rakhine, the government has blocked all U.N. assistance to the area, granting access to only the Red Cross.

Buddhists in Rakhine have accused international aid groups of favoring Rohingya.

“We are explaining to the community members who approached the boats about the activities of the Red Cross,” said Maria Cecilia Goin, a communications officer at the ICRC in Yangon.

“It’s important for them to understand that we are working in neutral and impartial way,” she said, adding that the work is being done “with full transparency with the Myanmar authorities.”