Washington (dpa) - After the Iranian attacks on US troops in Iraq, the US has imposed further economic sanctions on Tehran. This was announced by US Secretary of State Mike Pompeo and Treasury Secretary Steven Mnuchin in Washington. The new punitive measures affect, among other things, the country's steel sector. The situation escalated after the United States specifically targeted the top Iranian general Ghassem Soleimani in Baghdad at the end of last week. Iran responded by attacking two US-based military bases in Iraq. There were no deaths.