World leaders condemn Orlando nightclub shooting

World leaders denounced the worst shooting in U.S. history at an Orlando nightclub, which killed 49 people.

The pride flag is flying at half mast Monday over the Scottish government headquarters St Andrew's House, Edinburgh in memory of the victims.

British Prime Minister David Cameron said he was "horrified" by the shooting in Orlando.

His sentiments were echoed by the Queen of England and the royal family.

U.N. Secretary-General Ban Ki-moon condemned the attack in a message posted to Twitter.

London's new mayor Sadiq Khan said he stood with Orlando against hate and bigotry.

General Pervez Musharraf, former president of Pakistan, said in a statement on his Facebook page that "this is a sobering reminder that extremism and terrorism are on the rise."

"Perpetrators of such attacks belong to no country, believe in no religion and are primarily driven to destabilize all societies. We must show resolve and demonstrate strong leadership to crush terrorists and eliminate extremism," Musharraf said.

Israeli Prime Minister Benjamin Netanyahu said on Twitter "the tragedy there has deeply saddened me. We Israelis feel your pain as if it were our own."

Canadian Prime Minister Justin Trudeau issued a statement on the shooting Sunday, saying "We stand in solidarity with Orlando and the LGBTQ2 community."

Afghanistan President Ashraf Ghani tweeted, "Nothing can justify killing of civilians." In an interview with CNN’s Christiane Amanpour, Ghani said, “Our reaction is one of total shock and revulsion.” Noting that shooter Omar Mateen’s parents are Afghans, he added, “The Afghan public condemns this in categorical terms and we have no sympathies, because we have been subject to 1,708 terrorist attacks this year alone.”