Iran will continue with its aerospace programme despite U.S. warnings, Foreign Minister Mohammad Javad Zarif said on Wednesday, adding there was no international law prohibiting such a programme, Reuters reported.

Zarif, who is in New Delhi on a bilateral visit, also told Reuters that leaving a 2015 nuclear deal agreed with world powers is an option available with Tehran but is not the only option on the table.

The United States earlier this month issued a pre-emptive warning to Iran against pursuing three planned space rocket launches that it said would violate a U.N. Security Council resolution because they use ballistic missile technology.