Malaysian immigration has deported yet another Hong Kong pro-democracy activist, soon after touching down in Malaysia.

Hong Kong legislative council member Leung Kwok-hung, whose nickname is 'long hair' for his trademark silver mane, was immediately detained on arrival at the Kuala Lumpur International Airport (KLIA) this afternoon.

Leung managed to relate his predicament to organisers of a forum in Petaling Jaya through phone text messages ( photo ).

On Tuesday, another pro-democracy activist, Joshua Wong, was deported soon after arriving at the Penang International Airport.

There is mounting speculation that the deportations are an attempt to please China.

The duo were key figures in the Umbrella Revolution - a movement which opposes Beijing's decision to vet candidates for the election of Hong Kong's chief executive in 2017.

Leung consistently criticised Beijing

Leung and Wong were scheduled to speak at a public forum tonight on the 26th anniversary of the Tiananmen Massacre.

Leung arrived at KLIA around 1.14pm on Cathay Pacific Flight CX723 from Hong Kong.

He was put on the next flight back to Hong Kong on Cathay Pacific Flight CX722 which took off at 3.07pm and is expected to arrive at 6.35pm.

Leung is also known for being a vocal lawmaker who has consistently criticised Beijing for trying to stifle democracy in Hong Kong.

He had on Wednesday criticised Putrajaya for deporting Wong, calling it an insecure regime.

This is after Home Minister Ahmad Zahid Hamidi called Wong's deportation a matter of "national security".

Inspector-general of police Khalid Abu Bakar had also said the deportation was meant to protect Putrajaya's relation with Beijing.