Young teenagers are still being exposed to content about bullying, suicide and weapons - including graphic animal deaths - on social media, despite new safety rules being introduced, a BBC investigation has found.

The new measures came into force in July as part of the Online Safety Act, meaning online and social media companies are now legally responsible for keeping children and young people safe online.

The experiment, in collaboration with BBC Morning Live, used the same profiles and repeated the same exercise as a May investigation.

Online safety expert David Wright CBE said it was "really concerning", but added "in large part it's going to take time" for change to happen.

"It just means that everyone still has to remain vigilant," added Mr Wright, who is CEO of the charity SWGfl and director at the UK Safer Internet Centre.