As tensions rose, Harrison openly denounced Tenskwatawa as a fraud and a fool, enraging him. Tecumseh ordered his brother to take no action, but his brother continued to call for the death of Harrison. Tenskwatawa lifted the ban on firearms and was able to quickly procure them in large quantities from the British in Canada. Tecumseh made a strategic error by leaving him alone to travel to the south. Tenskwatawa took his brother's absence as an opportunity to raise tensions even higher by further stirring up his followers.