A man arrested following a three day stand-off with police in Northolt has been sectioned under the Mental Health Act.
The 46-year-old was bailed to return to Acton Police Station in mid-December whilst a mental health assessment is completed.
Wood End Lane was put on lockdown after he barricaded himself inside an address at around 1am on Friday.
He was thought to be in possession of dangerous items including petrol and combustibles.
Around 80 people were evacuated from their homes.
The Met Police brought the incident to a safe conclusion on Sunday evening.
Shortly after 8pm specialist officers from the Territorial Support Group (TSG) forced their way into the property and the man was detained.
Neighbour Aadesh Rathore said: "They used a bar to force entry through his door, he was then surrounded by officers and searched whilst shouting a little bit.
"He seemed very confused and in a very bad mental state. He was led to a police van and taken away quietly."
The man was arrested on suspicion of cultivation of cannabis, affray and offences under the Explosives Act and taken to a west London police station.
A search of the address was completed to ensure that the area was safe and residents who had been temporarily re-housed were allowed to return home.
Police cordons have now been removed.
Work is still ongoing at the address as police are still examining the crime scene. This is expected to take some time.
The investigation will be carried out by Ealing CID.
