The threat of undetected terrorists still prepared to strike is real. That's the warning from Sri Lanka's Prime Minister. Security services have launched an operation to eliminate potential second-or-third-round attacks. Authorities have revised the death toll from Sunday by more than 100 down to 253. Meanwhile, Defense Secretary Hemasiri Fernando has resigned, as the nation looks for answers as to how the tragedy could have happened, even with warnings. As CGTN's Ravinder Bawa reports, grief is turning to rage.

Anusha Kumar stares into darkness as there is no hope left she says. On Easter Sunday she lost her husband and two children in an explosion at the St. Sebastian's Church in Sri Lanka. Now, this picture has become her bedfellow as she misses her children beside her. Her anger rises at the lapse on government's part but her grief takes over.

ANUSH KUMAR PARENT OF VICTIM "If they had informed us our cardinal would have protected us. We would have been vigilant of our surroundings. I saw the bomber but when he exploded then only I realised that it was a bomb. If I knew he was bomber I would have hugged her to protect her. I would have saved my child she was right next to me."

Anusha's mother-in-law Teresa has lost all counts.

That dreadful day seven dead bodies were brought to her house. Her son and daughter and five grandkids.  

"I am under shock and I have no words to express my pain. I am completely alone. I am hurting a lot."

Teresa's son-in-law feels as alone as her. Pradeep Sushanta was waiting at the gate of the church for his family to come out after the mass and in a fraction, his wait has become endless.

PRADEEP SUSHANTA PARENT OF VICTIM "I am not alive. I wish I died with them when it happened. They were my family they were my life. Now that they have gone I am lifeless."

These explosions have left behind many lifeless families. With the death toll rising every day, funerals and burials for victims are taking place every day.    

RAVINDER BAWA COLOMBO "Prayers are pouring in from all sides for people who have lost their lives in the explosion. But every time we met a bereaved family, the question we were asked again and again was who can bring back my loved one. Ravinder Bawa Colombo."