A man has been arrested in connection with the murder of Natalie McNally in Co Armagh last month.
The 32-year-old was arrested in the Lisburn area on Tuesday.
A Police Service of Northern Ireland spokesperson said the man was previously arrested on December 19.
He has been taken to Musgrave Serious Crime Suite in Belfast for questioning.
Ms McNally, 32, who was 15 weeks pregnant, was stabbed in her home in Lurgan on December 18.
More than 1,000 people gathered at a rally in her memory at Lurgan Park on Saturday.