Iran has warned the United States against launching a ground offensive due to increasing troop numbers in the region and reports of a planned invasion. The Iranian Parliament Speaker warned that the US is in the midst of a major world war. He also criticised attempts at mediation, suggesting that the U.S. may have indicated a willingness to negotiate but was planning a ground operation. The potential ground operation would involve combined operations by regular infantry and special forces, but is not intended to be a full-scale invasion. It is unclear whether US President Donald Trump will approve the plans. The US military has also reportedly drawn up plans for a possible ground operation in Iran. The situation continues as Israel attacks Tehran, killing at least 10 people. The death toll for Iran has been at least 3,400, including civilians.