Brussels explosions
A refugee boy holds up a placard reading "Sorry for Brussels" as refugees and migrants take part in a protest against the closure of the border at the Greek-Macedonian borderFedja Grulovic/ Reuters

Thousands of people have taken to Twitter to express their solidarity with Belgium after the Brussels terror attack on 22 March. The hashtag #PrayForBelgium was trending worldwide as people posted messages, pictures and drawings for the victims.

Twin blasts rocked Zaventem International Airport at 8am (7am GMT), following which a third explosion hit Maalbeek Metro Station. At least 34 people were confirmed dead and 90 people injured, with travel to and from Brussels being cancelled.

Brussels attack LIVE updates: Multiple deaths after blasts at Zaventem airport and Maalbeek metro

The #PrayForBelgium hashtag was not the only solidarity hashtag doing the rounds after the attack. Hashtags #JeSuisBruxelles and #JeSuisBelge were also gaining momentum, mimicking the #JeSuisCharlie trend that started after the Charlie Hebdo attacks in Paris in January 2015.

Meanwhile, the hashtag #IkWilHelpen (I want to help) was also trending in Belgium as locals in Brussels took to Twitter to offer free rides and accommodation to those stranded in the city. A number of people posted information about how many people they could host in their houses, as well as information about when they would be driving out of Brussels and how many people they were able to transport.