Residents were baffled when they woke up to foul smells coming from the river and discovered giant foam formations on its banks.<br /><br />Jolina Barrias said there was a stench in Tuy town, Batangas the Philippines so they went to check on the river on Wednesday (August 19) morning.<br /><br />She said: "The smell was strong and gives us a headache when we inhaled so we went to have a look."<br /><br />When the people arrived at the river, they saw the giant foam almost covering the area with its size.<br /><br />The local officials sought help from the police. They later arrested two men for allegedly dumping barrels of chemicals the night before during a storm on the river.<br /><br />The place where they reportedly dumped the chemicals is just a few metres away from where the bubbles formed.<br /><br />Tuy Police Station chief Major Von Eric Gualberto said: "Some witnesses saw the two men washing the barrels on the river. This could have caused the bubbles to form."<br /><br />Police confiscated 16 empty barrels from the two men which used to be containers of unknown chemicals.<br /><br />They admitted dumping its content in the river so they could sell the barrels to a junk shop.<br /><br />The men also said they bought the barrels from a closed-down factory that still had some unused materials in its warehouse.<br /><br />The police said the men could be charged for violating the Toxic Substances and Hazardous and Nuclear Waste Control Act which can imprison them from six months to six years.