NEW : The UK government stands firmly against torture and will cooperate fully , it says . The investigation will take place now rather than at the end of a government inquiry into allegations of UK involvement in abuse of detainees , the police said in a joint statement with prosecutors . Comment: Abdul Hakim Belhaj and Saami Al-Saadi say British officials were involved in their rendition . The head of MI6 says the intelligence agency will cooperate fully with the police .
NEW : The UK government stands firmly against torture and will cooperate fully , it says . Comment: Abdul Hakim Belhaj and Saami Al-Saadi say British officials were involved in their rendition . The head of MI6 says the intelligence agency will cooperate fully with the police .