Kolkata, June 13 -- In a predawn raid on Saturday, a team of West Midnapore police searched Trinamool Congress (TMC) national general secretary Abhishek Banerjee's house in Kolkata's Kalighat area in connection with a land fraud case in which his personal assistant Sumit Roy is an accused.

"A team from Salboni police station searched Abhishek Banerjee's house in the early morning on Saturday. Police went there looking for an accused. The search lasted for a little more than an hour. The accused wasn't found. No items were seized," said a senior official of West Midnapore police.

Former chief minister Mamata Banerjee rushed to Abhishek's residence soon after being alerted, people familiar with the matter said.

"They broke open the locks...