Google Executive Goes Missing in Egypt as Protests Continue

A friend of marketing exec Wael Ghonim tells CNN that he hasn't had contact with anyone since Friday morning.

A Google executive has gone missing in Egypt as protesters demonstrate against President Hosni Mubarak.

A friend of Wael Ghonim told CNN that the exec, who serves as head of marketing for Middle East and North Africa, hasn't made contact with anyone since Friday morning and that concern is "growing bigger and bigger by the day."

Ghonim had traveled to Cairo for a conference ahead of the protests against Mubarak, whom protestors are calling on to step down after 30 years in power. Since the demonstrations began Tuesay, more than 100 protestors have been reported killed and thousands more injured.

Ghonim's friend said he wasn't a political activist, but Ghonim had tweeted about the situation in Egypt.

His last tweet, posted Thursday, read: "Pray for #Egypt. Very worried as it seems that government is planning a war crime tomorrow against people. We are all ready to die #Jan25"

Google declined to comment on the situation to CNN, saying, "We take the security of our employees very seriously, so I'm sure you'll understand that we can't comment on individual employees."