Three Denver police officers were fired after joking about visiting migrant shelters in the city and using them as “target practice,” the police department said.

In March, three Denver police officers in a shared group chat posted messages joking about going to newcomer shelters in the city and using them for target practice, according to a statement from the police department.

The group chat consisted of Denver police officers who went through the training academy together and were still probationary officers, according to the Denver Police Department.