Watford flats 'arson attack' forces 20 people from homes
About 20 people were forced to flee their homes after suspected arson attack on a block of flats that left one person in hospital.
Hertfordshire Police are investigating the fire at Redding House in Tolpits Lane, Watford, at 08:45 BST.
A spokesman said two men were seen leaving the scene in a blue Vauxhall Astra and appealed for witnesses.
The injuries suffered by a woman during the fire are understood not to have been life-threatening.