Thames Valley Police are working with specialist teams at All Saints Cemetery in connection with their search for the body of missing teenager Jayden Parkinson.
The 17-year-old went missing two weeks ago and her ex-boyfriend has been charged with her murder.
More top news
A number of teenagers, aged 13 to 15, from Portsmouth, have been treated in hospital, after taking tablets believed to be diazepam.
Thursday Evening's Pollen Forecast
Thursday night's weather for the east of the region