Police are searching for 20-year-old Marwan Jumaa after he escapes from a secure hospital ward, with authorities warning the public not to approach him. The reports say Jumaa was being held under an indefinite hospital order, following a criminal conviction connected to an assault on two women. Police also describe him as a potential risk to himself and others. The coverage indicates that the escape triggers an urgent response and ongoing investigation into how he left the ward and where he may go next. Authorities have not indicated in the provided accounts any injuries, additional victims, or the exact circumstances of the escape. The information presented across the sources focuses on his identity, his prior conviction, the nature of the order under which he was detained, and the public safety message urging people to avoid contact and leave the search and any follow-up to police. Further details beyond the existence of the search and the warning are not included in the supplied text.