TEHRAN, Iran (AP) — Iran has raised the death toll from Saturday's twin earthquakes to 306, a day after rescuers called off the search for survivors.

Heath Minister Marzieh Vahid Dastjerdi told a session of parliament Monday that the number jumped by about 50 after victims expired in the hospital. More than 3,000 people were injured in the earthquakes.

Scores of aftershocks have coursed through Iran's mountainous northeast since the 6.4 and 6.3 magnitude quakes hit the region, where some 300,000 people live near the borders with Azerbaijan and Armenia.

Iran is located on seismic fault lines and is prone to earthquakes. In 2003, some 26,000 people were killed by a 6.6 magnitude quake that flattened the historic southeastern city of Bam.

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  • Ruins of a house is seen after an earthquake in the city of Varzaqan in northwestern Iran, on Saturday, Aug. 11, 2012. A 6.2-magnitude earthquake hit the towns of Ahar, Haris and Varzaqan in East Azerbaijan province in northwestern Iran on Saturday, state TV said. Iran is located on seismic fault lines and is prone to earthquakes. It experiences at least one earthquake every day on average, although the vast majority are so small they go unnoticed. (AP Photo/Mehr News Agency, Hamed Nazari)

  • Ruins of a houses are seen after an earthquake in the city of Varzaqan in northwestern Iran, on Saturday, Aug. 11, 2012. (AP Photo/Mehr News Agency, Hamed Nazari)

  • A woman lies injured on a stretcher in a street after an earthquake in the city of Varzaqan in northwestern Iran, on Saturday, Aug. 11, 2012. (AP Photo/Mehr News Agency, Hamed Nazari)

  • Residents of the city of Varzaqan sit at the side of a street after an earthquake in northwestern Iran, on Saturday, Aug. 11, 2012. (AP Photo/IRNA, Kazem Yousefi)

  • Medics tend a woman who was injured in an earthquake in the city of Varzaqan in northwestern Iran, on Saturday, Aug. 11, 2012. (AP Photo/IRNA, Kazem Yousefi)

  • A man stretchers a woman who was injured in earthquake in the city of Varzaqan in northwestern Iran, on Saturday, Aug. 11, 2012. (AP Photo/IRNA, Kazem Yousefi)

  • Medics treat an injured man after an earthquake in the city of Varzaqan in northwestern Iran, on Saturday, Aug. 11, 2012. (AP Photo/Mehr News Agency, Ali Hamed Haghdoust)

  • A woman talks as she tends her injured loved one after an earthquake in the city of Varzaqan in northwestern Iran, on Saturday, Aug. 11, 2012. (AP Photo/Mehr News Agency, Ali Hamed Haghdoust)