Police have released eight people arrested in connection with the death of Watford woman Shahana Uddin on bail.

Officers arrested a 24-year-old woman on suspicion of murder yesterday - the eighth arrest in the murder investigation.

They have all been released on bail with strict conditions to report to Watford police station on December 15. 

Shahana, 19, was pronounced dead on the arrival of the emergency services to a house in Leavesden Road shortly after 9.15am on Saturday.

A post-mortem revealed the 19-year-old - who should have been celebrating her twentieth birthday on Tuesday - died as a result of injuries sustained from a physical assault, police said.

Stunned friends and Watford residents took to social media to pay their respects to the former Queen’s School pupil overnight.

Shabana Khan posted on Facebook: "So sad. I studied in da same primary school with her. And know her family very well. 

"Don't believe another young life has been taken. Thoughts r wid ur family xxx [sic]".

Fenn Krauss wrote on Twitter: "I cannot believe I have just looked at the picture of a girl I went to school with as the girl that was killed. 

"I'm absolutely mortified."

Hertfordshire Constabulary launched a witness appeal yesterday.

Detective Inspector Fraser Wylie, from the Bedfordshire Cambridgeshire and Hertfordshire Major Crime Unit, said: "Tuesday was Shahana’s twentieth birthday, but instead of marking such a significant milestone in a woman’s life we are now appealing for information to help investigate her murder.

"Did you know Shahana? You may have known her as Shehana. Were you friends with her and did she ever confide in you? 

"Did you see Shahana on Friday, October 10 or did you have any contact with her in recent weeks? 

"I would like to stress to anyone who may be able to help, but who may be nervous about doing so - that if you do have information it will be treated in strict confidence."

Call police on the 101 enquiry line or the incident room number on 01707 355666 with any information.
Alternatively, you can call the Crimestoppers charity anonymously on 0800 555 111.