Australia and Singapore have suspended operations of all Boeing 737 Max models.
Singapore’s Civil Aviation Authority (CAAS) said it would continue to monitor the situation and review the safety risk posed by the model.
The move will affect Singapore Airlines’ SilkAir, which has six of the jets in its fleet, as well as China Southern Airlines, Garuda Indonesia, Shandong Airlines and Thai Lion Air.
This comes as Indonesia, Mexico, China and Ethiopia announced similar steps following the two deadly crashes involving the 737 Max aircraft in less than five months.
Meanwhile, India's civil aviation regulator has directed that pilots with 1,000 hours and co-pilots with 500 hours of flying experience can operate the 737 MAX 8 fleet.
On Sunday, Ethiopian Airlines Max 8 crashed, killing all 157 people on board.
Israeli Prime Minister Benjamin Netanyahu said the ceasefire in Gaza would end and the military would resume fighting Hamas until it was defeated if the Palestinian group did not release hostages by midday Saturday.
Government offices, schools and workplaces fell silent in Sweden at midday on Tuesday in remembrance of the victims of a mass shooting at an adult education centre last week when a gunman killed 10 people before turning his weapon on himself.
UN Secretary-General Antonio Guterres urged Hamas to continue with the planned release of hostages on Tuesday, a day after the group announced its intention to halt the exchange.
US President Donald Trump substantially raised tariffs on steel and aluminum imports to a flat 25 per cent "without exceptions or exemptions" in a move to aid the struggling industries but which increases the risk of a multi-front trade war.