Police have released a photograph of a firework they believe was used in an arson attack on the home of an elderly couple in Lincolnshire.
CCTV footage of a cyclist with a backpack filmed 30 minutes before the fire on 4 May has also been released.
Read more on the BBC Lincolnshire News website.
Lincolnshire Police have also updated their own news page relating to the incident, which now includes additional images and video footage of the cyclist seen in the area at the time of the attack.
Read more on the Lincolnshire Police website.