Paris attacks suspect Salah Abdeslam has changed his mind and will not fight extradition from Belgium to France, his lawyer says.

Salah Abdeslam is one of the key suspects in November's Paris attacks which left 130 people dead.

He was arrested and wounded in a police raid on Friday in Brussels.

On Tuesday, suicide bombs in Brussels killed 31 people. The attacks are thought to be linked to the Paris attacks network and Abdeslam's arrest.

So-called Islamic State (IS) has said it was behind both attacks.

Abdeslam's lawyer, Sven Mary, told French media that he "wishes to leave for France as quickly as possible" so he could "explain himself in France".

Mary had previously said Abdeslam, a 26-year-old French national born in Belgium, intended to fight extradition to France.

Abdeslam did not have prior knowledge of the Brussels bombings, and had stopped co-operating with police following the attacks, Mary said.

Meanwhile, Belgium's health minister said that scores of people remained in intensive care following Tuesday's suicide bomb attacks in Brussels.

Brussels international airport will be closed until Saturday. Photo: Reuters/BBC

Maggie de Block said that of about 300 wounded people, 61 were still in a critical condition, and suggested that the death toll could rise further.

Brahim el-Bakraoui blew himself up in the attack at Zaventem airport that killed 11 people, while his brother Khalid struck at Maelbeek metro station, where 20 people died, prosecutors said.

Unconfirmed reports say another of the airport attackers was the wanted jihadist Najim Laachraoui, whose DNA was found on explosives linked to last year's attacks in Paris.

The third suspected airport attacker has not been identified yet and is on the run.

An airport CCTV image shows Brahim el-Bakraoui, who was killed, in the middle. The man on the left has not been officially identified and is believed to have died. The man on the right has not been identified and is thought to be on the run. Photo: Reuters/BBC

Federal Prosecutor Frederic Van Leeuw said the third suspect, who was wearing a hat in CCTV footage from the airport, had left a bag containing "the biggest bomb", which later partially exploded after police had evacuated the terminal, injuring no-one.

Meanwhile, police sources have told Belgian and French media that police are seeking a second suspect in the suicide attack on the metro.

Courtesy: BBC

One source told AFP news agency that a man with a large bag had been seen beside Khalid el-Bakraoui on surveillance footage at Maelbeek metro station.

EU interior and justice ministers are due to hold a crisis meeting in Brussels on Thursday to discuss their response to the bombings.