According to Babel's investigation, 26 people have died at the regiment's training facilities in the past six months.
The man, who has been suspended, is also being investigated for abuse and torture of conscripts. The accusations are supported by testimony from relatives of the soldiers.
Ukrainian authorities have launched an investigation.
In a statement, the regiment calls Babel's claims "serious", but also says that 18 of the deaths occurred on the way to hospital or in hospital due to "illness or poor health".
After four years of war, the need for soldiers is great in Ukraine, but mobilization is increasingly difficult. Fewer people are volunteering, and conscription tends to be harsher.
