North Wales Police are appealing for witnesses who were travelling on the Lloyds Coaches T2 bus, from Bangor towards Aberystwyth on Monday 23 September.
The bus left Bangor at approximately 4.15pm from the main bus station, and during the journey, a male was acting in an intimidating aggressive manner towards several passengers.
If you were on the bus and can provide the police with any information, please call North Wales Police on 101 quoting Ref 19100549668.
