Probe into top Mumbai policemen

A probe has been ordered into the role of the Mumbai police chief

The government of India's Maharashtra state has announced an investigation into two senior policemen over alleged failure to prevent the Mumbai attacks.

Opposition parties have demanded action against state police chief AN Roy and Mumbai police chief Hasan Gafoor.

The two have been blamed for failing to act on warnings of the attacks, which left over 170 people dead.

India's interior minister and Maharashtra state chief minister have already resigned over the attacks.

Earlier this month, India's new Home Minister Palaniappan Chidambaram admitted that there were security lapses in the militant attacks on Mumbai.

He said the lapses were being "looked into" and their "causes would be addressed soon".

His predecessor Shivraj Patil was forced to quit amid media and opposition criticism that he was taking a "soft" approach on militants.

Maharashtra's chief minister, Vilasrao Deshmukh, also resigned after the attacks.

On Wednesday, the lower house of the Indian parliament approved two new anti-terror bills to beef up internal security.

India has blamed Pakistan-based militants for the attacks. Islamabad denies any role.

The multiple attacks on the city on 26 November left at least 173 people dead, including nine of the 10 gunmen.

A man named as Mohammed Ajmal Amir Qasab, the sole known surviving suspect from the deadly attacks on Mumbai, has been remanded in custody until 24 December.

The suspect faces a number of charges including murder, attempted murder, waging war against a country and criminal conspiracy.