GSOC is investigating after a man in his 40s was killed in a two-car crash in Dublin overnight.
It happened at around twenty part 12 on the N7 outbound at Kingswood.
A man in his 30s was taken to Tallaght Hospital with serious injuries, while another man in his late 20s was also hospitalised.
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The road was closed for a technical examination but has since reopened.
The matter has been referred to the Garda Ombudsman as one of the vehicles came to the attention of Gardaí before the crash.
