A number of services and health units across the Southern Trust are closed today due to industrial action by health staff.
Significant disruption to health and social care services is expected in local hospitals and the community as nurses go on strike today.
A Unison representative in the Southern region said its members will not be taking industrial action this week.
The Southern Health and Social Care Trust said: "We are expecting some disruption to local services due to the planned industrial action on Wednesday, January 8 and Friday, January 10 across the Southern Trust."
The Minor Injuries Unit in South Tyrone Hospital will be closed on both days.
45 outpatient appointments have been cancelled on Wednesday.
A small number of other services may be affected, patients will be contacted directly.
"If you have NOT received a letter or telephone call to cancel your appointment, please attend," said a Trust spokesperson.
For more information: www.southerntrust.hscni.net/4334