Armed police swarmed into Surbiton's Alpha Road estate last night and seized "weapons" after paramedics reported a man in distress.
A Metropolitan Police spokeswoman said officers were called to Howard Road at 5.21pm yesterday and "a number of weapons were seized from the location".
Police found the man and he was sectioned under the Mental Health Act, before being taken to a west London hospital for assessment, she said.
Residents on social media reported seeing armed officers leap from their cars with "machine guns already in hand".
- Did you see what happened? Email Surbiton reporter Ellie Cambridge at ellie.cambridge@london.newsquest.co.uk.
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