Story highlights Hafiz Saeed has been arrested in Pakistan, along with four other suspects

Saeed can be detained for up to 12 months under Pakistan's Anti-Terrorism Act

(CNN) The alleged mastermind of the 2008 terror attacks that left 164 people dead in Mumbai, India, has been placed under house arrest in Pakistan. 

Hafiz Mohammed Saeed -- the leader of Pakistan's Jamaat-Ud-Dawa (JUD) -- was detained in Punjab, Pakistan's largest province, according to a government statement released late Sunday. 

Saeed is under detention in the town of Lahore.  Four other men -- Abdullah Ubaid, Zafar Iqbal, Abdur Rehman Abid and Qazi Kashif Niaz -- have also been placed under house arrest in other towns around Punjab. 

The arrests come in conjunction with the placing of two organizations -- JUD and the Falah-e-Insaniat Foundation -- on a watch list under Pakistan's Anti-Terrorism Act of 1997. 

All the men were detained for being active members of the organizations and are being held under Section 11-EEE of the Anti-Terrorism Act, which gives the government the power to arrest or detain suspects for up to 12 months. 

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