Dublin Bus says no customers were on board at the time.
Dublin Bus is liaising with Gardaí after one of its drivers was threatened with a gun in Dublin's north inner city.
A man boarded the number 13 bus, which was parked at Mountjoy Square, at around 11 o'clock on Friday night, and allegedly pointed a gun at the driver.
Dublin Bus says no customers were on board at the time - but the 7a and 13 buses are not serving Mountjoy Square after 7pm until further notice.
SIPTU Transport Sector John Murphy says the driver is shaken after the ordeal:
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