Four men in their 20s were arrested by gardai following an assault in Dublin city centre in the late hours of Monday night.
A male in his early 20s was hospitalised with minor facial injuries following the attack which took place on Townsend Street at 10:50pm.
The four people arrested were released without charge and a file is being prepared for the DPP.
One eye-witness told Dublin Live that the building where Huawei is based on the street had gardai surrounding it still this morning.
They added: "It was still sealed off this morning and around 10 gardai were outside along with staff."
This was the second serious attack that took place in the city in the space of a couple of hours.
A man in his late teens was arrested following the incident in Dublin City Centre that took place early on Tuesday morning
Gardai on patrol came to the assistance of a man, 20s, on George's Street at 2:45am who had received serious head injuries following the attack.
He was taken to St James's Hospital where his injuries are not thought to be life threatening.
The suspect was arrested a time later and is currently being detained at Pearse Street Garda Station.
The scene is preserved for technical examination and enquires are ongoing.
