The London Fire Brigade (LFB) has revealed the cause of a fire that destroyed a historical church building in north-west London is “undetermined”.

On 27th January, local residents of St John’s Wood saw how 80 firefighters battled the blaze at St Mark’s church in Hamilton Terrace.

The fire completely destroyed the inside of the two-story building, causing the roof to cave in. There were no victims.

According to the BBC, the LFB has recorded the fire as an undetermined cause "due to the unsafe structure of the building". 

On Sunday, the congregation held a Candlemass service outside the church.

“The building might be broken, but St Mark's is well and truly alive. Thanks be to God,” a statement said in the church’s Facebook page.

The service was presided by the church’s vicar, Rev Kate Harrison who was joined by Bishop of London, Rt Rev Sarah Mullaly.

Accompanied by a cross made from pieces of burnt timber pulled from the building, Rev Kate thanked everyone for the messages of support received.

She said: “Thank you everyone for turning out today. Thank you for all for your prayers and support. Those are the things that will carry us through… we are so thankful for your prayers.”