Former UK prime minister Gordon Brown has warned that the response of the international community to the Pakistan flood disaster has to improve.
Mr Brown, visited the Glasgow Central Mosque, said the action taken so far "has not been commensurate with the scale of the crisis".
The UN has raised nearly half of the £295m needed for initial help, but warned the response had been slow.
An estimated eight million people are now said to be in need of relief.
Mr Brown, who is campaigning to highlight the aid initiative, said: "The unfolding human tragedy in Pakistan is causing misery on a scale which calls the world to action.
"There simply must be a better response from the international community to prevent the spread of disease in areas affected by the floodwaters."
The MP added: "The action to date has not been commensurate with the scale of the crisis in Pakistan.
"The long and strong relationship between Pakistan and Britain means there are many people here with relatives who are suffering at home.
"I urge the international community to respond to the crisis with renewed vigour and co-ordinated effort."
UN Secretary General Ban Ki-Moon called an emergency session to further boost international aid.