New Delhi, Sep 9 (IANS): Amid conflicting claims on who was behind the Delhi High Court bombing, a third email has surfaced. It was sent to the Delhi Police, claiming responsibility for the terror attack that killed 13 and left over 90 injured.

Investigators probing the deadly blast have not revealed the exact content and other details of the email, the third in as many days.

Informed sources, however, confirmed that another email has claimed the responsibility for the blast Wednesday.

The earlier emails were attributed to the Pakistan-based Harkat-ul-Jehadi Islami (HuJI) and the home grown terror group Indian Mujahideen owned up to the bombing.

The HuJI e-mail was tracked to an internet cafe in Jammu and Kashmir's Kishtwar district. It threatened to carry out more such attacks if the death penalty to 2001 parliament attack convict Afzal Guru was not immediately repealed.

Police have already picked the owners of the cafe and are in search of the person who sent the email.

A TV network received the second email in which the Indian Mujahideen said it had plotted the attack and warned that its cadres would strike outside a shopping complex Tuesday.

Meanwhile, sleuths led by the National Investigation Agency (NIA) are pursuing scattered leads to crack the case but have not achieved any major breakthrough.