There are some fundamental reasons for this weakness; especially political risks and issues.
There is an election in Turkey in June'15 and government increases the pressure over the to reduce the interest rates, before the election. But the resists this political pressure because of high . This conflict resulted higher risk premium for Turkish Financial Markets.
Market needs to see a clearer picture for an upward movement hereafter.
There is a rough road to $40 level. For below $40, I think this is another story.