Total assets rose by 2.3 percent to 32.797 billion manats, while total liabilities increased by 2.6 percent to 28.066 billion manats.

The pipeline between Greece and Bulgaria is TAP's 182-kilometre interconnector that will bring around 1 billion cubic metres (bcm) of gas from Azerbaijan to Bulgaria, providing between 25 and 30 percent of the European country's gas needs.

The warning was issued as Belarusian President Alexander Lukashenko stoutly defended the action to divert the Ryanair aircraft to Minsk.