The US destroyed the tallest bridge, B1 bridge in Karaj, with a 136-meter column, is 35 km from Tehran, under construction in Iran on April 2. At least eight people were killed and 95 others injured in the US-Israeli strikes. They also hit the century-old medical research centre and steel plants in Tehran. US President Trump warned of more such attacks if Tehran does not 'make a deal'. He said the US will drag Iran back to the 'Stone Ages' over the next two to three weeks.