At least six people were injured in three serial bomb blasts in India's northern city of Gorakhpur on Tuesday, media reports said, according to DPA. Police told the PTI news agency that bombs which were planted on cycles exploded at a busy marketplace in Gorakhpur, located 260 kilometres east of Lucknow, capital of Uttar Pradesh state. The explosions occurred in the commercial area near the Golghar crossing at seven-minute intervals, the NDTV network reported. Senior officials who rushed to the area said these were "crude and low-intensity bombs" which were kept inside tiffin boxes. The area has been cordoned off by police-personnel investigating the blasts. The explosions come four days after a blast in a historic mosque in India's southern city of Hyderabad city that claimed 11 lives. Five people were killed when police fired on an angry mob that gathered outside the mosque in the aftermath of the incident.