A fund set up to repatriate the remains of a Japanese man who was killed in Dundalk in January has raised more than 10 times the initial amount targeted.

An 18-year-old is due back in court next week after being charged with the murder of a Japanese man in Co Louth.

Technical examinations are being conducted on two mobile phones and at an abandoned house in a bid to determine the motivation behind a knife rampage by an Egyptian teenager in Dundalk that left a young Japanese man dead and two Irish men injured.

Detectives say that an examination of phone and online communications of the Egyptian teenager arrested in relation to the stabbing spree in Dundalk, Co Louth, which left one man dead, would be critical in establishing the motive for the attack.

Tests will be carried out today on the body of a teenager who died in hospital after a street brawl.