IRNA � Iran Consul General to Shanghai Alireza Irvash said on Friday that Iran is closely following issues related to decoding the black box of the sunken tanker.

'We have followed up the legal issues pertinentto decoding the black box with full delicacy and through legal channels; we are busy holding consultations on the issue with our advisors,' Irvash told IRNA.

All parties should suggest their views regarding the process of decoding the black box within three days, and we have also submitted our documents and views on the issue, the diplomat said.

The time and the way of investigating the black box should be agreed by representatives of Iran, China, Hong Kong, Bangladesh and Panama, he said, adding that the process of reaching agreement is going on.

The Panama-registered Iranian tanker, named Sanchi, that was carrying 16,000 tons of gas condensate, collided with a Hong Kong-registered freighter in East China Sea on January 7. One dead body was pulled from water near the tanker when it was still burning and two others plus the black box were recovered by rescue team from the tanker. The tanker sank a week after the incident, despite all efforts made to save the lives of crew. Now it is presumed that all other 30 crew members are dead. Two Bangladeshis were onboard the vessel.