Flat residents scared and shockedpublished at 11:24 British Summer Time 13 September
Nicola Haseler
BBC News, Bedfordshire
There is a large police presence here - I must have seen 20 police vehicles in total.
About 25 officers have just entered the block where others had already previously gone in.
Police seem to have blocked off most entrances to the block of flats.
There are 14 floors of flats in this building and the residents I have spoken to have said they are scared and their children are scared.
They told me "Marsh Farm has changed a lot recently" and this is quite shocking as according to them it has become a safe place to live.
The estate was hit by riots in the 1990s, and has undergone a lot of regeneration work in recent years.