The UK has canceled a major army exercise in Kenya after the two countries failed to resolve a dispute over Nairobi’s powers to prosecute British soldiers accused of committing crimes in the East African nation.

The planned Exercise Haraka Storm, involving the 1st Battalion and The Duke of Lancaster’s Regiment, was reportedly scheduled to begin in September in central Kenya’s Laikipia County. It will instead be held outside Kenya, the British Ministry of Defence said on Thursday, according to The Guardian. Kenya’s Standard newspaper reported that the training would be moved to neighboring Tanzania.

“It is with regret that the necessary licences required to allow training to take place in Laikipia later this year have not been forthcoming,” a Ministry of Defence spokesperson said.

The African state hosts a permanent British Army training support unit, known as BATUK, in Nanyuki, about 200km (125 miles) north of the capital, Nairobi. British troops have trained there since Kenya’s independence in 1963, conducting infantry exercises, as well as engineering and medical deployments under a bilateral defense cooperation agreement.

Kenyan lawmakers have, however, withheld approval for a renewed bilateral defense agreement amid demands for greater jurisdiction over serious offenses committed by British troops. Funding for BATUK is also reportedly under negotiation.

The unit has faced widespread allegations of misconduct, including murder, rape, and environmental pollution. A two-year Kenyan parliamentary investigation report released last December accused British soldiers of murder, sexual assault, torture, and forcibly evicting residents near Nanyuki. It also documented claims involving civilian deaths and injuries from unexploded ordnance, pollution, toxic-waste disposal, and damage to wildlife habitats.

Former serviceman Robert Purkiss has been charged in Kenya with the 2012 murder of 21-year-old Agnes Wanjiru. He is contesting extradition from Britain. Wanjiru’s body was found in a septic tank near a Nanyuki hotel after she was last seen with British troops. Purkiss denies the charge.

Last year, Britain agreed to pay £2.9 million ($3.9 million) to more than 7,700 Kenyans and an environmental group over a 2021 wildfire accidentally started by British troops. The blaze destroyed more than 12,000 acres of the Lolldaiga Hills and reportedly caused one death.

The Ministry of Defence said it remained committed to its defense partnership with Kenya and would continue talks aimed at resuming training.

Nelson Koech, chairman of the Kenyan parliament’s defense committee, said Nairobi is seeking stronger accountability measures, greater protection for local communities, and implementation of the BATUK inquiry’s recommendations.

The two governments are “actively engaging to address these outstanding issues,” The Guardian quoted Koech as saying.