Israel's prime minister is to meet top officials to prepare for a possible attack by Iran, Paralel.Az reports citing The Financial Times.

Prime Minister Benjamin Netanyahu is expected to meet members of his war cabinet, including Defence Minister Yoav Gallant and opposition figure Benny Gantz.

One US official CBS spoke to warned Iran could use more than 100 drones, dozens of cruise missiles and possibly ballistic missiles.

These would reportedly be aimed at military targets in Israel in a strike the size of which Israel would find "challenging" to defend against.

The official added that there was still a possibility Iran could decide to hold back.

A second source also confirmed to CBS that an Iranian action could happen on Friday.