Islamabad/Lahore: A day after banned Sunni extremists group Lashkar-e-Jhanvi claimed responsibility for shooting down 29 Shia Muslims, its chief Malik Ishaq has been placed under house arrest in Pakistan's Punjab province.

Ishaq, who was recently released from a jail in Lahore on the orders of a court, was confined to his home in Rahim Yar Khan for 10 days under the Maintenance of Public Order law, District Police chief Sohail Zafar Chattha said on Thursday.

Punjab government had issued a directive for Ishaq's detention due to concerns that he posed a threat to peace, media reports said.

The move came a day after the banned LeJ claimed responsibility for the massacre of 29 Shias at Mastung in Balochistan province.

It could not immediately be ascertained if Ishaq's detention was linked to the killings that were widely condemned by the minority Shia community and rights groups.

Malik is also accused of masterminding the attack on the Sri Lankan cricket team on March 3, 2009, when a bus carrying the cricketers, was fired upon by gunmen near the Gaddafi Stadium in Lahore, where the third day of the second test between the two teams was to get underway.

Since his release from jail in July, Ishaq had been touring many parts of Punjab and addressing public meetings and was reportedly preaching hatred and violence in the name of Islam.

Ishaq, accused of murdering 70 people, most of them Shias, has been involved in "highly objectionable activities", a document recently prepared by the Law Enforcement Department of the Punjab government had said.