A 30-year-old man and a minor have been arrested in connection with the murder of a father of two in west Belfast.
The victim, 30-year-old John Mongan, was hacked to death with a machete and hatchet as he lay in bed with his heavily pregnant wife on Thursday.
His wife was taken to hospital with a head wound.
The murder is thought to be linked to an escalating feud involving traveller families.
The latest arrests, which were made in the Glendale area of Derry last night, bringing the number of people detained so far to five
Two men, aged 32 and 37, and a 68-year-old woman who has since been released, were arrested in Derry on Thursday.