Tensions are rising in the Middle East as Iran warns of a harsh response to new US sanctions. The sanctions were announced on Monday, and Iran's Foreign Ministry spokesperson says Tehran will react strongly.

The US sanctions are part of a broader set of developments in the region. Israeli and Syrian officials met recently, following Israeli strikes in Syria. Israel also reported killing a Hamas commander in Gaza.

Further details on these developments and the wider Middle East situation are available. The new sanctions and other events have raised concerns about the potential for escalation in the region.