Facebook founder Mark Zuckerberg bought another 110 acres of land on the Hawaiian island of Kauai. This move was protested by local residents because they considered ownership of the area to include water reservoirs and pristine forests. The social media entrepreneur and his wife now own 1,400 acres of land on the island, mostly agricultural and conservation land. "The latest addition to the $100 million Ko'olau Ranch includes the Ka Loko reservoir, where a dam collapsed in 2006 after 40 days of rain, killing seven people," local media reported this week. The disaster was blamed on the previous owner, from whom Mark Zuckerberg bought the property in November for $17 million. The billionaire had previously faced charges of trying to "colonize" Kauai. The couple's actions after buying their first home on the island in 2014 are barely neighbours. The billionaire chose to build a wall around the 707-acre property to block locals from accessing Pila'a beach, a place loved by locals and travelers alike. Mark Zuckerberg was later accused of trying to evict tenant farmers from their land. He finally gave up three years later. He later apologized in the local paper for his attempted takeover. The Zuckerbergs also own most of the Kahu'aina Plantation and Larsen Beach, having acquired an additional 600 acres in April for $53 million. "The security team tasked with protecting the couple and their investment cost more than half, totaling $23 million," local media reports said. The security team might be worth the money, considering how many signatures it got on a Change.org petition asking the Hawaii Department of Lands "Stop Mark Zuckerberg from Colonizing Kauai." More than 1 million people have signed the petition so far. The Zuckerberg family aren't the only tech billionaires expanding their footprint over the tropical island paradise of Hawaii. Amazon founder Jeff Bezos bought $78 million worth of land in Maui in November after leaving his wife. He claims the marine fishing reserve with his partner Lauren Sanchez. His presence was not liked by the locals. Residents say they are not allowed to fish or carry out commercial activities in the area. Bezos also recently bought most of the property for his parents on the island. Larry Ellison of Oracle also owns almost the entire island of Lanai.