Armed police were called to Kingswood and Soundwell after a man was reportedly seen displaying "threatening behaviour".
The man reportedly targeted members of the public this morning (July 15) on Church Road, near Kingswood Leisure Centre.
St Stephen's C of E Junior and Infant School, on Lansdown Road, has been keeping pupils in classrooms due to the incident.
READ MORE: Updates: Police incident in Soundwell as school 'goes on lockdown'
An Avon and Somerset police spokeswoman said at 11.33am: "Due to the nature of the threat, armed officers have attended. Staff and students at St Stephen's Junior School in Kingswood are being kept indoors as a precautionary measure while enquiries are ongoing.
"The man is believed to have left the school vicinity and we'd like to reassure parents and guardians that there is no ongoing threat to the school. We'd ask them to avoid travelling to the school at this time."
She added 15 minutes later: "Following our earlier report about a man displaying threatening behaviour towards members of the public in Kingswood, police have now made an arrest.
"Neighbourhood officers will be maintaining a visible presence in the area. There is no ongoing threat to the public."
Over the last 45 minutes, a police helicopter circled Soundwell and Kingswood, as well as a brief period spent over the Fishponds area, before flying to Almondsbury.
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