New Delhi, Dec 5 (IANS) A fourth accused in the rape of a 30-year-old BPO employee in the capital's Dhaula Kuan area last week has been arrested from Sohna district of Haryana, Delhi Police said Sunday.

"The accused Iqbal, alias Bada Billi, was arrested from Fatehpur Beri in Haryana by a team of Delhi Police which had gone there in search of him," a senior police officer told reporters.

Two accused -- Shamsad and Usman -- were earlier this week arrested from Mewat in Haryana while a third accused, Shahid, surrendered to police in Faridabad in connection with another case and was later found to be involved in the Delhi rape, according to police.

"With the arrest of Iqbal, four of the five men accused in the rape have been arrested. We are on lookout for one more youth who is till absconding in the case," the police officer said.

A senior police officer said searches were on in the National Capital Region (NCR) and neighbouring states to nab the youth.

On Nov 24, the BPO staffer, a native of Mizoram, was abducted by five men and gangraped in a moving goods carrier.

She was abducted soon after being dropped along with another girl, 100 metres from her home, by her office vehicle in Dhaula Kuan area of south Delhi late at night. The men then drove all the way to Mongolpuri in north Delhi and dumped her there after raping her.