JERUSALEM — An Iranian national was seriously injured by a bomb he carried shortly after a house he rented in a residential neighborhood of Bangkok exploded.

The man had thrown a hand grenade at police as they pursued him Tuesday following the home explosion, but did not throw it far enough and was caught in the blast, which tore off his legs, according to reports.

Unnamed officials have been quoted in the Israeli media as saying they believe the bombs that exploded in the house he shared with two other non-Thai men were being prepared for a large-scale attack against an Israeli target.

At least four Thai citizens were also injured in the blasts, which occurred several blocks from the Israeli embassy in Bangkok.

The explosions come a day after Israeli diplomats were targeted by bombs in New Delhi and Tbilisi, which injured the wife of an Israeli diplomat. Israel has blamed the attacks on Iran.

Last month, 400 boxes of bomb-making material were found hidden in boxes for electric fans in a shop near Bangkok. Police learned of the cache from a Lebanese man arrested Jan. 13 who was alleged to be working with Hezbollah to plan a bombing attack. He told Thai police that the material was to be smuggled out of Thailand and used in an attack in another country.