Singapore shares started the week rock bottom, losing over 2% on Monday and tracking regional losses as US President, Donald Trump, threatened to hit Iran's key infrastructure due to the latter's Strait of Hormuz blockade.

The Straits Times Index (STI), a key benchmark for the Singapore Exchange, ranged between 4,817.11 and 4,872.81 throughout the day. It ended the session at 4,841.30, down 107.57 points or 2.2% compared to Friday's close.

In retaliation to Trump's threats, Iran also threatened to target US-linked energy, information technology and water desalination plants across the region.

In economic news, Singapore's MAS core inflation, which excludes the cost of accommodation and private transport, rose 1.4% year on year in February from 1.0% in the previous month, according to a joint release by the Monetary Authority of Singapore and the Ministry of Trade and Industry.

On the corporate front, shares of Medi Lifestyle (SGX:Z4D) surged over 280% at the close as its controlling shareholder, Lingholm Holdings, agreed to dispose of 142 million shares in the company for SG$568,000.

Mapletree Logistics Trust (SGX:M44U) closed over 2% lower, with the trust set to acquire a Grade A warehouse located in India for 3.89 billion Indian rupees.

Meanwhile, shares of Lendlease Global Commercial REIT (SGX:JYEU) were down over 3% at the close as it raised around SG$196.6 million after receiving valid acceptances and excess applications for 219.1 million shares from its preferential offering.