GAUHATI, India -- Hundreds of tea estate workers surrounded the plantation owner's home in India's northeastern state of Assam and set it on fire over a labor dispute, killing him and his wife, police said Thursday.

Police recovered the charred bodies of the couple, Mridul Kumar Bhattacharyya and his wife, Rita, from the burned remains of their house in Tinsukhia district, police Superintendent P.P. Singh said.

The plantation had been rocked by labor trouble over the past few weeks and some workers had been suspended two weeks ago.

On Wednesday, around 700 workers armed with bows and poison-tipped arrows surrounded the house and set it on fire, trapping the couple. The house had burned down by the time police reached the remote region in Tinsukhia.

Police are investigating but no arrests have been made, Singh said.

The estate is about 700 kilometers (435 miles) northeast of Assam's capital, Gauhati.

More than half of India's tea production comes from some 1,000 tea estates across Assam. Tea plantations, also known as `gardens,' employ thousands of women, especially for plucking the leaves from tea bushes.

Also on HuffPost:

Loading Slideshow...
  • Doomsday Hour In England

    People embrace by the ancient stone circle of Stonehenge, in southern England, as access to the site is given to druids, New Age followers and members of the public on the annual Winter Solstice, Friday, Dec. 21, 2012. (AP Photo/Matt Dunham)

  • Wintertime In Iowa

    A local resident clears snow from his driveway after an overnight snowfall left many schools and businesses closed for the day, Thursday, Dec. 20, 2012, in Urbandale, Iowa. (AP Photo/Charlie Neibergall)

  • Summertime In Brazil

    Rio de Janeiro residents celebrate the summer's first day as the sun rises at the Copacabana beach on December 21, 2012. (ANTONIO SCORZA/AFP/Getty Images)

  • Water Crows In New Delhi

    A water crow rests on a wooden bamboo pole along with fencing at Lodhi gardens in New Delhi on December 20, 2012. (HUSSAIN/AFP/Getty Images)

  • Dr. Quelokura In Nicaragua

    The director of "Club of Clowns" clown school, Tito Aguirre, known as "Dr. Quelokura," delivers a present to a patient during a visit to La Mascota Children Hospital in Managua, Nicaragua, Tuesday, Dec. 18, 2012. (AP Photo/Esteban Felix)

  • Mahakumbh Festival In India

    Hindu holy men who have arrived ahead of the month-long Mahakumbh festival perform morning rituals "Sangam," the confluence of rivers Ganges and Yamuna in Allahabad, India, Wednesday, Dec. 19, 2012. (AP Photo/Rajesh Kumar Singh)

  • Anti-Constitution Protests In Egypt

    A protester shows his chained hands during a demonstration against a constitution drafted by Islamist supporters of President Mohammed Morsi in Tahrir square in Cairo, Egypt, Friday, Dec. 14, 2012. (AP Photo/Petr David Josek)

  • Maaasai Women In Kenya

    Maasai women wait in a queue to register to vote in the general elections scheduled for March 2013 in the village of Olgumi in Kajiado County West on December 18, 2012. (CARL DE SOUZA/AFP/Getty Images)

  • Kukulkan Temple In Mexico

    The sun rises behind the Kukulkan temple in Chichen Itza, Mexico, Friday, Dec. 21, 2012. Ceremonial fires burned and conches sounded off as dawn broke over the steps of the main pyramid at the Mayan ruins of Chichen Itza Friday, making what many believe is the conclusion of a vast, 5,125-year cycle in the Mayan calendar. Some have interpreted the prophetic moment as the end of the world. The hundreds gathered in the ancient Mayan city, however, said they believed it marked the birth of a new and better age. (AP Photo/Israel Leal)

  • Santa And The Dolphins

    A man dressed in a Santa Claus costume poses with a dolphin, at the animal exhibition park Marineland, on December 19, 2012 in Antibes, southeastern France. (VALERY HACHE/AFP/Getty Images)