India, April 14 -- The United States negotiated with Iran for a 20-year "suspension" of all nuclear activity rather than a permanent ban, while Tehran's offer said it could agree only to a five-year pause, a new report said, quoting people aware of the talks.

Tensions between the two countries continue to remain high after their talks in Pakistan's Islamabad ended without a deal to stop the more than five-week US-Israeli attack on the Islamic republic. Follow US-Iran war live updates here.

The US stance did not involve a permanent ban on Iran's nuclear enrichment. Instead, it suggested a 20-year "suspension" of all nuclear activity, The New York Times reported, citing people familiar with the negotiations.

This would give Iran room to ...