In response to a series of operations on merchant shipping in the vicinity of "Israel's" war on Gaza, cargo vessels are advised to exercise increased caution near Yemen and Somalia, Bloomberg reported on Wednesday.

The Israeli container carrier Zim Integrated Shipping, situated in occupied Haifa, announced this week that it is rerouting a few of its boats out of caution. Due to increased safety hazards, Zim was compelled to impose a "war risk premium" on some of its services, which ranged from $25 to $100 for every 20-foot container unit.

According to a research report this week from S&P Global Market Intelligence, over the long run, companies may reconsider routings to either sail around the southern tip of Africa — adding 10 days to journeys — or travel through the Panama Canal and add 11 days.

Rail links from Asia "which may require transit through Russia" were mentioned as further potential.

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The UK Navy issued a security notification citing reports of small vessels acting "suspiciously" in the Gulf of Aden.

Recent incidents include the seizure of the Galaxy Leader car carrier by the Yemeni resistance on November 19 and a drone strike on a containership on November 24, both with reported Israeli connections.

The US Department of Transportation Maritime Administration urged caution in these areas, crucial for ships transiting the Suez Canal.

"Exercise caution when transiting these areas and remain cognizant of evolving threats in this region," the department said in a Marad alert on Monday.

Read more: Yemeni naval forces vow to continue operations against 'Israel'