OTTAWA, Jan 19 (Reuters) - There are still no firm plans for downloading the cockpit and flight data from a Ukrainian airliner which was shot down by Iran 10 days ago, Canada’s Transportation Safety Board (TSB) said on Sunday.

The TSB said in a statement that two of its crash investigators had left Tehran earlier on Sunday after a six-day visit during which they examined the wreckage. A total of 176 people died in the disaster, 57 of them Canadian citizens. (Reporting by David Ljunggren; Editing by Lisa Shumaker)