An explosion Friday night at a protest site in Thailand's capital injured at least six people, as political tensions wracking the country showed no sign of easing.

The farmers canceled the protest at Bangkok's Suvarnabhumi Airport after striking a last-minute deal with Prime Minister Yingluck Shinawatra, who agreed to make long-delayed payments on last year's rice crops to them by next week. They vowed, however, to stage the protest next week if the payments are not made.

The farmers' protest is one of many headaches for Yingluck, who appears increasingly powerless against a wider anti-government movement pressing for her resignation.

Thailand's farmers have been paid 65 billion baht ($2 billion) for last year's crops, but are still owed 110 billion baht ($3.39 billion).

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