Egypt's Prosecutor-General Nabil Sadek headed to Rome on Tuesday to meet his Italian counterpart to discuss the latest developments in Giulio Regeni's case, an Italian student who was found dead in Cairo in February. A statement from Sadek's office said that he travelled to Rome with a delegation from the Egyptian prosecution after being invited to Italy by Rome's deputy-prosecutor Sergio Colaioccoin. It is the fifth such meeting between Egyptian prosecutors and investigators and their Italian counterparts looking into the case, after previous meetings in Cairo in March and November and in Rome in April and September. Regeni, who was in Cairo conducting research on independent trade unions, went missing on 25 January, the fifth anniversary of Egypt's 2011 Revolution. His body was found, bearing signs of torture, by a roadside on the outskirts of Cairo on 3 February. Egypt has strongly denied claims that security forces were involved in Regeni's murder. Italian officials have publicly criticised the investigations being carried out by Cairo, saying they were being conducted in a way that shows a lack of transparency. Regeni's murder has strained ties in an otherwise close relationship between Rome and Cairo.