A third worker has been arrested by Essex Police as part of a probe into a Braintree care home.
The woman, in her 50s, was arrested at her home in the Braintree area on suspicion of assaulting a resident at the Old Deanery Care Home.
The home came under the spotlight after an undercover Panorama investigation captured alleged abuse during filming last year.
Broadcast on April 30 it has prompted a police investigation.
The woman has been released on police bail until the end of July pending further enquiries.
Earlier this month two women aged in their 30s and 40s were arrested at their homes, also in Braintree, on suspicion of assault. They are also on police bail until the end of July.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here