AIRPORTS across India were put on high alert yesterday after a warning that a plane flying to Europe or the US could be hijacked, officials said.

Airports across India were put on high alert today after a warning that a plane flying to Europe or the US could be hijacked, officials said.

Airports across India were today placed on high alert and stringent security checks ordered after an airport in southern India received an anonymous letter warning of a terror attack by al-Qaida militants.