Pakistan Army has arrested a senior officer deployed at the General Headquarters Rawalpindi on the charges of his alleged links with a banned outfit, report said on Tuesday. According to the report Brigadier Ali Khan had been deployed at GHQs Regulation Directorate for two years. The report said he was being interrogated with regard to his alleged links with the militant organization. According to the sources close to the family of the accused he did not return home on the evening of May 6. On families queries it was told that Ali khan has been detained for questioning and he would be back home soon. Army spokesman Major General Athar Abbas confirmed that the officer had been arrested, but released no further details on which groups he was alleged to have been in contact with. The investigation is on and we follow a zero tolerance policy of any such activity within the army, he added.