Iran on Thursday rejected US accusations that the Iranian shipping company IRISL was involved in Tehran''s alleged nuclear weapons programme, the official news agency IRNA reported.

"This US claim is like other allegations that independent countries are being accused of, without providing any evidence," the state shipping company said in a statement.

The United States said on Wednesday it would slap sanctions on the Islamic Republic of Iran Shipping Lines and 18 other affiliated entities for providing logistical services to Iran''s Ministry of Defense and Armed Forces Logistics.

"Not only does IRISL facilitate the transport of cargo for UN designated proliferators, it also falsifies documents and uses deceptive schemes to shroud its involvement in illicit commerce," said Stuart Levey, Under Secretary for Terrorism and Financial Intelligence, in a statement.

"IRISL''s actions are part of a broader pattern of deception and fabrication that Iran uses to advance its nuclear and missile programs," he said.