Suffolk father who hunted for daughter's killer was a hero, son says

Biden admits using sleep apnoea treatment device

Human remains thought to be found in Titan sub debris

FBI failed 'at fundamental level' before Capitol riot, Senate report claims

3 San Antonio officers charged with murder in fatal shooting of woman at her apartment

Titan sub CEO dismissed safety warnings as 'baseless cries', emails show

Strathclyde University's shock and sadness at student's Titan sub death

Coast Guard finds debris field in hunt for Titanic sub

Missing Titanic sub search in critical phase amid fears over oxygen levels

Missing Titanic sub search team expand search area as oxygen fears mount

Explorer's harrowing experience of being trapped at Titanic stern in 2000

Titanic tourist submersible: Huge effort to find vessel as air supply dwindles