Kolkata: Most of them expressed shock, some shared contacts for blood donations while some offered to recharge mobile services for free -- netizens reached out on social media under the hash tag #prayforkolkata in the aftermath of the collapse of a flyover that killed at least 14 people on Thursday.

Plans to cheer for India against West Indies in the WorldT20 semi-finals at Mumbai's Wankhede were sidelined.

 Rescue work is going on after an under construction flyover collapsed in Vivekananda Road, in Kolkata on Thursday.Rescue work is going on after an under construction flyover collapsed in Vivekananda Road in Kolkata on Thursday. Pic/PTI

Images of the iconic Howrah Bridge and gory pictures of the mangled remains of the 100-metre fallen stretch embossed with 'prayforkolkata' did the rounds on Twitter and Facebook as bodies continued to be extricated from the debris.

"Today i won't make a single tweet related to the semifinal match, no matter who wins. There is no reason to celebrate. #PrayForKolkata," tweeted one.

"The victims of #Kolkata need your prayers more than Team India right now. #PrayForKolkata. The ones responsible must be punished," said another.

As daylight faded, slowing down rescue and relief, grief-stricken social media users pitched in to help.

"Those who are out of balance in #Kolkata and need it urgently, Reply your Mobile Number with Operator Name, I'll Recharge. #PrayForKolkata," said one.

Others urged for blood donations.

"I urge to people of Kolkata, pls donate blood to wounded people in this hour of tragedy #PrayForKolkata," posted one.

"Please RT. contact these numbers for blood donation requirements 9883005724... 9062449500... 9051541024 #PrayForKolkata #Kolkata."

Many vented their anger at the political blame-game as the BJP, Congress and CPI-M tore into the ruling Trinamool Congress for the mayhem.

"No earthquake or natural calamities can harm, such a way sheer bad politics has done to my beautiful city!," tweeted another.