Indian authorities are going after a fourth Iranian in connection with a plot to attack Israeli diplomats.

The Press Trust of India reports Indian authorities Saturday issued an arrest warrant for Masoud Sedaghatzadeh.

Malaysian authorities arrested Sedaghatzadeh last month in connection with a failed bomb plot in Bangkok. Indian police said Friday that they believe Sedaghatzadeh was in contact with the three Iranians suspected in a New Delhi bombing that injured the wide of an Israeli embassy official.

New Delhi Police Chief Brijesh Gupta announced Friday that India is seeking international arrest warrants for the three Iranians, who have since fled the country.

Police have also arrested an Indian journalist working for an Iranian news agency in connection with the attack. Gupta said Mohammad Kazmi's confession was instrumental in uncovering the wider conspiracy and linking the New Delhi and Bangkok plots.

The February 13 attack in New Delhi wounded the wife of an Israeli embassy official as she was on her way to pick up her children from school. Indian officials say the bomber attached the explosives to the car using magnets. Officials in Thailand say the same kind of magnets were used in a bomb that detonated prematurely a day later in Bangkok.

Thai police arrested two Iranians in connection with the Bangkok explosion.

Israel has openly accused Iran of trying to carry out a series of attacks, including a bombing in Tbilisi, Georgia. Iran denies the allegations.

Tensions between the two countries have reached new heights as Israel threatens to take military action against Iran's nuclear facilities. Tehran insists its nuclear program is for peaceful purposes.