Alexis Tsipras Sworn In as New Prime Minister of Greece After Sweeping Victory

Leftist Syriza leader and winner of Greek general election Alexis Tsipras, left, shakes hands with Greek President Prokopis Pavlopoulos as he is sworn in as prime minister during a ceremony at the presidential palace in Athens, September 21. Greece's newly elected prime minister Tsipras said on Monday he would revive Greece's banks and its crippled economy, while demanding debt relief from creditors in his "first big battle" following an unexpectedly clear election victory that returned him to office as prime minister. Alkis Konstantinidis/Reuters

ATHENS (Reuters) - Leftist leader Alexis Tsipras was sworn in as prime minister of Greece on Monday after sweeping to victory for a second term in parliamentary elections on Sunday.

Tsipras took a civil oath of allegiance to the Greek constitution, in a break from common practice which is normally in the presence of religious leaders.