Typhoon Kalmaegi is the 20th tropical cyclone to hit the country this year.

As those in Vietnam now brace for its impact, let’s take a look at its trajectory.

• On Tuesday, the storm made landfall in the Philippines – it went on to flood whole towns and kill at least 114 people
• Tens of thousands of people were evacuated, particularly from central areas including the island and tourist hotspot of Cebu – early on Thursday, Philippines President Ferdinand Marcos Jr declared a state of emergency
• The typhoon has gathered in strength and is expected to hit Vietnam later on Thursday. It could generate waves of up to 8m (26 ft) on the South China Sea, according to Vietnam’s weather bureau
• Thousands of people who live in coastal communities have been asked to evacuate ahead of its arrival, with Vietnam’s Deputy Prime Minister Tran Hong Ha calling Kalmaegi a “very abnormal” storm that should be treated with urgency

We’ve an update on flights in Vietnam – something we reported on a little earlier.

The country’s government now says six airports in total have been told to close, ahead of the storm making landfall.

In the statement, officials say the closure of five in particular will affect hundreds of flights in Vietnam. They are:

• Buon Ma Thuot
• Pleiku
• Tuy Hoa
• Chi Lai Phu Cat
• Lien Khuong

The typhoon is expected to land just north of the coastal city of Quy Nhon, where thousands of people have been ordered to evacuate.

Earlier today, a reporter from AFP news agency saw officials knocking on doors and warning people to flee.

Some 100,000 households have been evacuated from the neighbouring province of Gia Lai, as of noon local time (05:00 GMT).

As of a couple of hours ago, local authorities urged those who haven’t evacuated to stay indoors.

More than 50 flights in Vietnam have been cancelled or rescheduled, according to national flag carrier Vietnam Airlines.

About eight airports in the central region, including the international airport in Da Nang, have either suspended operations or are preparing to do so, aviation authorities say.

We’ll bring more on this we we have it.

Before making landfall in Vietnam, Kalmaegi left a trail of devastation in the Philippines – and at least 114 people dead.

Philippines President Ferdinand Marcos Jr has declared a state of emergency – the threshold of which involves mass casualty, major damage to property, and disruption to means of livelihoods and the normal way of life for people in the affected areas.

The typhoon, known locally as Tino, ripped through the populous island of Cebu, submerging entire towns and sweeping cars through the streets. Tens of thousands of people have been evacuated, others are resting in shelters.

Here are some of the latest images we’re seeing:

Typhoon Kalmaegi passed through the Philippines on Thursday, and is now barrelling towards central Vietnam with increasing windspeeds.

It is expected to make landfall imminently, bringing waves of up to 8m (26 ft), according to Vietnam’s weather bureau.

Thousands of people who live in coastal communities have been asked to evacuate, and Deputy Prime Minister Tran Hong Ha has urged local officials to treat the storm with urgency.

The AFP news agency says officials are knocking on doors and warning people to flee.

We will bring you live updates as we get them. Stay with us.