PITTSBURGH — More than 275 police officers in Pittsburgh have voted in an unofficial online survey that they have no confidence in the city’s police chief.

The result of the no-confidence survey for Pittsburgh Police Chief Cameron McLay comes days before an official vote, planned for Thursday.

Officials with the Fraternal Order of Police Lodge No. 1 say 291 members of about 850 in the union voted in the poll, which has been available as a one-question survey since Aug. 20.

McLay has released a statement saying cultural resistance and pushback is normal and inevitable whenever police chiefs try to implement significant changes to policing.

McLay and the police union have clashed often since he joined the bureau in 2014, including his address to the Democratic National Convention while in uniform.