A sus­pect who has been ar­rest­ed in re­la­tion to the mur­der of 20-year-old Sa­van­nah Dy­er has been sent to the St Ann's Psy­chi­atric Hos­pi­tal for eval­u­a­tion, po­lice said. 

Dy­er's body was found in an aban­doned par­cel of land on Xeres Road, Carlsen Field, on Sat­ur­day morn­ing. 

In­ves­ti­ga­tors said blood was vis­i­ble on her face, and marks of vi­o­lence were ev­i­dent on the body. 

An au­top­sy was ex­pect­ed to be per­formed on her body to­day (Wednes­day). 

Po­lice con­firmed that two men were ar­rest­ed in re­la­tion to the mur­der.

One of the men sur­ren­dered to the po­lice, while the oth­er was ar­rest­ed near his home. 

Sources said one of the men was sent to St Ann's on Tues­day to as­sess his men­tal com­pe­tence, while the oth­er re­mained in cus­tody at a po­lice sta­tion in the Cen­tral Di­vi­sion. 

Guardian Me­dia un­der­stands the Di­rec­tor of Pub­lic Pros­e­cu­tions (DPP) has not yet been ap­proached for ad­vice on what charges, if any, should be laid against the sus­pects.