Russian authorities on Sunday promised to fix the mistakes in their troop call-up for Ukraine, after some public outrage over students, older or sick people being mistakenly ordered to report for duty.

When Russian President Vladimir Putin announced a partial mobilisation on Wednesday, he said only people with “relevant” skills or military experience would be concerned.

But many expressed outrage after seeing — sometimes absurd — cases of authorities summoning people unfit for service.

Authorities in the southwestern Russian region of Volgograd sent a 63-year-old diabetic ex-military staffer to training camp, despite poor health and cerebral issues.