COLOMBO, Sri Lanka (AP) — The death toll in Sri Lanka’s prison clash rose Tuesday to 26, including seven prison officials and 19 inmates, while the government announced that three separate investigations into the incident are underway.

The unrest at the prison in Negombo, about 35 kilometers (22 miles) north of the capital, Colombo, started between inmatse on Sunday and turned violent on Monday after the inmates attacked the guards who intervened. Officials said the inmates even tried to break through the main gate, but were stopped.