Just some inevitable profit taking. We're still around four times the price of just six weeks ago, or two and a half times the price of less than two weeks ago. The rally is taking a breather and some people will want to get off. This is normal and healthy; the people who aren't committed will get off, and people who either want to add to their holding, or want to trade (meaning they'll be looking for a higher price) will buy.
This is just a very normal thing immediately after such an extreme rally.
TNT Price at posting:
19.0¢ Sentiment: Buy Disclosure: Held