Monday evening was busy as usual near the Red Fort metro station in India's capital, Delhi, when the sound of a loud blast broke through the cacophony on the streets.

An explosion in a car killed at least eight people and injured more than 20. It was so powerful that several vehicles nearby were almost melted, and people could hear the blast from kilometers away.

The police are still investigating what caused the blast, but the fact that it happened in one of the most secure and busy areas of Delhi has shocked people.

On one side is Chandni Chowk—a busy trading and clothing hub that is busier than usual due to the peak wedding season. On the other side is the 17th Century Red Fort, attracting thousands of tourists every day. Sandwiched between the two is the road where the explosion took place. Within minutes, confusion and alarm spread from the scene to the rest of the city.

Some readers may find the details below disturbing

Mohamed Hafiz, who lives less than 200m from the spot, said his house shook, and he and others ran out thinking it was an earthquake. What he saw on the street terrified him: people were running in all directions, cars were on fire, and bodies lay on the road. Some locals were trying to help the injured.

There was blood everywhere. People were in shock. The scene was too disturbing - I could even see body parts, he said.

As local media broke the news, fear and panic swept through the city. Police declared a high alert, and neighboring states quickly followed suit.

After visiting the hospital where the injured were taken, we drove to the site of the blast. It was jarring to see the roads empty, usually teeming with people late into the night. There were only security personnel or journalists around. Officials had relaxed restrictions, allowing journalists closer to the site where mangled remains of cars, rickshaws, and tuk-tuks lay. Blood stains could still be seen on the road.

Ram Singh, a local driver, expressed his worry about business being affected by the blast, hoping for a quick return to security and normalcy in the city. He said, And I hope this never happens in our city ever again. We are shaken, but we should overcome this.